high pr and traffic are different. sometimes a site has good pr (even 5) but it does not get good traffic and sometimes a site gets handsome amont of traffic daily but their pr is just 1 or 2. in my opinion traffic is more important than pr.
there`s many ways to drive traffic to your site, why you worry about pr5,there are free ways, right sum articles is the fastest and it`s free.!
if you want to know how many links you need and from what PR sites, than have a read of http://www.compar.com/infopool/articles/PR-calculation.html by Bob Wakfer aka compar here at DP.
I want to know if PR not really important why many review broker need higher PR to accept you as Member even you have good traffic
PR(A) = (1-d) + d(PR(t1)/C(t1) + … + PR(tn)/C(tn)) PR(A) is the PageRank of the page you are trying to measure. d is a damping factor considered to be about 0.85. tn is the PR of the incoming link page. C is the number of outgoing links from each page that has a link to you. Maybe this is what you need to understand what PR you get if you link to a website that is PR5.
True, but in my experience high serp often comes when you get high pr quality links. And high pr links increases your own pr rank, so everything is kinda connected ;-) At least that's how I drive my sites to top3 for their keywords in google
Google used to use an algorithm called PageRank for this issue and this algorithm basically used to depend very much on the links to your website and the PR of those websites who your site's link stems from. However, sites with high PR used to give your link if you pay them a good amount of money. So people misused this algorithm and some bullshit websites were ranked among the firsts in the queries since they invested some money into this. That's why Google changed its algorithm and no longer uses PageRank algorithm. This also means that right now not only the inlinks affect your page's rank but much more factors play a role here.
If you want to improve your page rank go for digital marketing approach. like SEO,SEM,EMAIL MARKETING, LINK BUIDING