Finding the Fourth Proportional to 284,350.70, 392,403.69 and 157,025.99
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Solution
The fourth proportional to 284,350.70, 392,403.69 and 157,025.99 is: 216,695.72
Step by Step Solution
- Step 1: Write the proportion equation
284,350.70 : 392,403.69 = 157,025.99 : x - Step 2: Convert to fraction form
284,350.70/392,403.69 = 157,025.99/x - Step 3: Cross multiply
284,350.70x = 392,403.69 × 157,025.99 - Step 4: Simplify right side
284,350.70x = 61,617,578,882.91 - Step 5: Solve for x
x = 61,617,578,882.91/284,350.70 - Step 6: Final answer
x = 216,695.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.