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Finding the Fourth Proportional to 625,781.79, 938,115.90 and 226,333.71

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Solution

The fourth proportional to 625,781.79, 938,115.90 and 226,333.71 is: 339,299.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,781.79 : 938,115.90 = 226,333.71 : x
  2. Step 2: Convert to fraction form
    625,781.79/938,115.90 = 226,333.71/x
  3. Step 3: Cross multiply
    625,781.79x = 938,115.90 × 226,333.71
  4. Step 4: Simplify right side
    625,781.79x = 212,327,252,056.99
  5. Step 5: Solve for x
    x = 212,327,252,056.99/625,781.79
  6. Step 6: Final answer
    x = 339,299.19

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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.