Finding the Fourth Proportional to 284,891.38, 393,125.61 and 157,535.08
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Solution
The fourth proportional to 284,891.38, 393,125.61 and 157,535.08 is: 217,384.87
Step by Step Solution
- Step 1: Write the proportion equation
284,891.38 : 393,125.61 = 157,535.08 : x - Step 2: Convert to fraction form
284,891.38/393,125.61 = 157,535.08/x - Step 3: Cross multiply
284,891.38x = 393,125.61 × 157,535.08 - Step 4: Simplify right side
284,891.38x = 61,931,074,421.40 - Step 5: Solve for x
x = 61,931,074,421.40/284,891.38 - Step 6: Final answer
x = 217,384.87
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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.