Home / 437,747.32-656,650.14-138,240.10

Finding the Fourth Proportional to 437,747.32, 656,650.14 and 138,240.10

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Solution

The fourth proportional to 437,747.32, 656,650.14 and 138,240.10 is: 207,369.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,747.32 : 656,650.14 = 138,240.10 : x
  2. Step 2: Convert to fraction form
    437,747.32/656,650.14 = 138,240.10/x
  3. Step 3: Cross multiply
    437,747.32x = 656,650.14 × 138,240.10
  4. Step 4: Simplify right side
    437,747.32x = 90,775,381,018.61
  5. Step 5: Solve for x
    x = 90,775,381,018.61/437,747.32
  6. Step 6: Final answer
    x = 207,369.36

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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.