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Finding the Fourth Proportional to 339,178.56, 468,115.11 and 203,217.90

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Solution

The fourth proportional to 339,178.56, 468,115.11 and 203,217.90 is: 280,469.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,178.56 : 468,115.11 = 203,217.90 : x
  2. Step 2: Convert to fraction form
    339,178.56/468,115.11 = 203,217.90/x
  3. Step 3: Cross multiply
    339,178.56x = 468,115.11 × 203,217.90
  4. Step 4: Simplify right side
    339,178.56x = 95,129,369,612.47
  5. Step 5: Solve for x
    x = 95,129,369,612.47/339,178.56
  6. Step 6: Final answer
    x = 280,469.88

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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.