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Finding the Fourth Proportional to 501,431.62, 752,149.05 and 127,454.62

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Solution

The fourth proportional to 501,431.62, 752,149.05 and 127,454.62 is: 191,182.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,431.62 : 752,149.05 = 127,454.62 : x
  2. Step 2: Convert to fraction form
    501,431.62/752,149.05 = 127,454.62/x
  3. Step 3: Cross multiply
    501,431.62x = 752,149.05 × 127,454.62
  4. Step 4: Simplify right side
    501,431.62x = 95,864,871,351.11
  5. Step 5: Solve for x
    x = 95,864,871,351.11/501,431.62
  6. Step 6: Final answer
    x = 191,182.34

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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.