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Finding the Fourth Proportional to 440,644, 660,964.38 and 125,100.94

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Solution

The fourth proportional to 440,644, 660,964.38 and 125,100.94 is: 187,650.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,644 : 660,964.38 = 125,100.94 : x
  2. Step 2: Convert to fraction form
    440,644/660,964.38 = 125,100.94/x
  3. Step 3: Cross multiply
    440,644x = 660,964.38 × 125,100.94
  4. Step 4: Simplify right side
    440,644x = 82,687,265,244.52
  5. Step 5: Solve for x
    x = 82,687,265,244.52/440,644
  6. Step 6: Final answer
    x = 187,650.95

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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.