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Finding the Fourth Proportional to 378,044.20, 567,066.30 and 141,337.90

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Solution

The fourth proportional to 378,044.20, 567,066.30 and 141,337.90 is: 212,006.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,044.20 : 567,066.30 = 141,337.90 : x
  2. Step 2: Convert to fraction form
    378,044.20/567,066.30 = 141,337.90/x
  3. Step 3: Cross multiply
    378,044.20x = 567,066.30 × 141,337.90
  4. Step 4: Simplify right side
    378,044.20x = 80,147,960,002.77
  5. Step 5: Solve for x
    x = 80,147,960,002.77/378,044.20
  6. Step 6: Final answer
    x = 212,006.85

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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.