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Finding the Fourth Proportional to 279,165.38, 418,414.55 and 101,575.71

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Solution

The fourth proportional to 279,165.38, 418,414.55 and 101,575.71 is: 152,242.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,165.38 : 418,414.55 = 101,575.71 : x
  2. Step 2: Convert to fraction form
    279,165.38/418,414.55 = 101,575.71/x
  3. Step 3: Cross multiply
    279,165.38x = 418,414.55 × 101,575.71
  4. Step 4: Simplify right side
    279,165.38x = 42,500,754,482.70
  5. Step 5: Solve for x
    x = 42,500,754,482.70/279,165.38
  6. Step 6: Final answer
    x = 152,242.21

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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.