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Finding the Fourth Proportional to 226,934.87, 340,404.12 and 77,209.20

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Solution

The fourth proportional to 226,934.87, 340,404.12 and 77,209.20 is: 115,814.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,934.87 : 340,404.12 = 77,209.20 : x
  2. Step 2: Convert to fraction form
    226,934.87/340,404.12 = 77,209.20/x
  3. Step 3: Cross multiply
    226,934.87x = 340,404.12 × 77,209.20
  4. Step 4: Simplify right side
    226,934.87x = 26,282,329,781.90
  5. Step 5: Solve for x
    x = 26,282,329,781.90/226,934.87
  6. Step 6: Final answer
    x = 115,814.42

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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.