1.78 is what percent of 309 - 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 309 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 309, so we can write it down as 100%=309.
4. We know, that x% equals 1.78 of the output value, so we can write it down as x%=1.78.
5. Now we have two simple equations:
1) 100%=309
2) x%=1.78
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%=309/1.78
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 1.78 is what percent of 309

100%/x%=309/1.78
(100/x)*x=(309/1.78)*x       - we multiply both sides of the equation by x
100=173.59550561798*x       - we divide both sides of the equation by (173.59550561798) to get x
100/173.59550561798=x
0.57605177993528=x
x=0.57605177993528

now we have:
1.78 is 0.57605177993528% of 309