287.2 is what percent of 330 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 330 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 330, so we can write it down as 100%=330.
4. We know, that x% equals 287.2 of the output value, so we can write it down as x%=287.2.
5. Now we have two simple equations:
1) 100%=330
2) x%=287.2
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=330/287.2
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 287.2 is what percent of 330

100%/x%=330/287.2
(100/x)*x=(330/287.2)*x       - we multiply both sides of the equation by x
100=1.1490250696379*x       - we divide both sides of the equation by (1.1490250696379) to get x
100/1.1490250696379=x
87.030303030303=x
x=87.030303030303

now we have:
287.2 is 87.030303030303% of 330