Finding the Fourth Proportional to 279,432.57, 418,913.73 and 121,542.10
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Solution
The fourth proportional to 279,432.57, 418,913.73 and 121,542.10 is: 182,210.88
Step by Step Solution
- Step 1: Write the proportion equation
279,432.57 : 418,913.73 = 121,542.10 : x - Step 2: Convert to fraction form
279,432.57/418,913.73 = 121,542.10/x - Step 3: Cross multiply
279,432.57x = 418,913.73 × 121,542.10 - Step 4: Simplify right side
279,432.57x = 50,915,654,463.03 - Step 5: Solve for x
x = 50,915,654,463.03/279,432.57 - Step 6: Final answer
x = 182,210.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.