8 is what percent of 210.5 - 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 210.5 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 210.5, so we can write it down as 100%=210.5.
4. We know, that x% equals 8 of the output value, so we can write it down as x%=8.
5. Now we have two simple equations:
1) 100%=210.5
2) x%=8
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%=210.5/8
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 8 is what percent of 210.5

100%/x%=210.5/8
(100/x)*x=(210.5/8)*x       - we multiply both sides of the equation by x
100=26.3125*x       - we divide both sides of the equation by (26.3125) to get x
100/26.3125=x
3.8004750593824=x
x=3.8004750593824

now we have:
8 is 3.8004750593824% of 210.5