Posted by Frances on .
I don't know what to do..please help.The doctor estimates that more than 220 out of the 500 patients in his database take vitamin each year. A random sample of 60 patients shows that 27 o them take vitamin each day.
how to use a proportion to predict the total number of patients who take vitamin each day?

math 
drwls,
27/60 = x/500
x = 225