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Finding the Fourth Proportional to 425,796.80, 639,115.40 and 226,116.62

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Solution

The fourth proportional to 425,796.80, 639,115.40 and 226,116.62 is: 339,398.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,796.80 : 639,115.40 = 226,116.62 : x
  2. Step 2: Convert to fraction form
    425,796.80/639,115.40 = 226,116.62/x
  3. Step 3: Cross multiply
    425,796.80x = 639,115.40 × 226,116.62
  4. Step 4: Simplify right side
    425,796.80x = 144,514,614,037.95
  5. Step 5: Solve for x
    x = 144,514,614,037.95/425,796.80
  6. Step 6: Final answer
    x = 339,398.07

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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.