Hi,         

Let x represent how much gasoline will he need to travel 528 miles

Question Sets Up the Proportion

  

Cross multiply to solve for x

   231x = 5.25*528

      x = 5.25*528/231

      x = 12 gal, the amount of gasoline he needs to travel 528 miles

CHECKING our Answer

5.25gal / 231mi = .0227 =   12/528mi 

RELATED QUESTIONS

It took Jeremy 8.5 gallons of gas to drive 250 miles.  Assuming that he gets the same... (answered by lexi3651025)

A person spends $160 each month on gas. His current car is able to travel 30 miles per... (answered by greenestamps,josgarithmetic,addingup)

Toyota claims the Prius gets 51.00 miles per gallon. How many gallons of gas will it take  (answered by CubeyThePenguin)

Over the weekend, Brady and Jack drove to Key West to go scuba diving. Now they're... (answered by josgarithmetic)

I have to drive the distance of 428 miles. My gas tank holds 18 gallons of gas. I pay... (answered by sofiyac)

Boating:  The table gives the amount of y gas needed to travel a fixed distance if a boat  (answered by TimothyLamb,KMST)

according to recent study, the gas mileage of an automobile decreases by ten percent for... (answered by ankor@dixie-net.com)

1.You are going on a trip. It will take 3 hours to get there in a car going 60 mph. Your... (answered by josgarithmetic)

For a fixed number of miles, the gas mileage of a car (miles per gallon) varies inversely  (answered by mananth)