Finding the Fourth Proportional to 284,171.69, 392,129.00 and 156,839.08
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Solution
The fourth proportional to 284,171.69, 392,129.00 and 156,839.08 is: 216,422.50
Step by Step Solution
- Step 1: Write the proportion equation
284,171.69 : 392,129.00 = 156,839.08 : x - Step 2: Convert to fraction form
284,171.69/392,129.00 = 156,839.08/x - Step 3: Cross multiply
284,171.69x = 392,129.00 × 156,839.08 - Step 4: Simplify right side
284,171.69x = 61,501,148,856.48 - Step 5: Solve for x
x = 61,501,148,856.48/284,171.69 - Step 6: Final answer
x = 216,422.50
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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.