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Finding the Fourth Proportional to 408,139.28, 563,204.88 and 226,839.44

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Solution

The fourth proportional to 408,139.28, 563,204.88 and 226,839.44 is: 313,023.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,139.28 : 563,204.88 = 226,839.44 : x
  2. Step 2: Convert to fraction form
    408,139.28/563,204.88 = 226,839.44/x
  3. Step 3: Cross multiply
    408,139.28x = 563,204.88 × 226,839.44
  4. Step 4: Simplify right side
    408,139.28x = 127,757,079,584.47
  5. Step 5: Solve for x
    x = 127,757,079,584.47/408,139.28
  6. Step 6: Final answer
    x = 313,023.24

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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.