Finding the Fourth Proportional to 284,688.03, 392,854.14 and 157,356.03
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Solution
The fourth proportional to 284,688.03, 392,854.14 and 157,356.03 is: 217,142.84
Step by Step Solution
- Step 1: Write the proportion equation
284,688.03 : 392,854.14 = 157,356.03 : x - Step 2: Convert to fraction form
284,688.03/392,854.14 = 157,356.03/x - Step 3: Cross multiply
284,688.03x = 392,854.14 × 157,356.03 - Step 4: Simplify right side
284,688.03x = 61,817,967,839.46 - Step 5: Solve for x
x = 61,817,967,839.46/284,688.03 - Step 6: Final answer
x = 217,142.84
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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.