Finding the Fourth Proportional to 317,581.07, 438,260.00 and 172,389.74
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Solution
The fourth proportional to 317,581.07, 438,260.00 and 172,389.74 is: 237,896.82
Step by Step Solution
- Step 1: Write the proportion equation
317,581.07 : 438,260.00 = 172,389.74 : x - Step 2: Convert to fraction form
317,581.07/438,260.00 = 172,389.74/x - Step 3: Cross multiply
317,581.07x = 438,260.00 × 172,389.74 - Step 4: Simplify right side
317,581.07x = 75,551,524,399.15 - Step 5: Solve for x
x = 75,551,524,399.15/317,581.07 - Step 6: Final answer
x = 237,896.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.