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Finding the Fourth Proportional to 438,761.88, 658,142.82 and 106,337.88

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Solution

The fourth proportional to 438,761.88, 658,142.82 and 106,337.88 is: 159,506.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,761.88 : 658,142.82 = 106,337.88 : x
  2. Step 2: Convert to fraction form
    438,761.88/658,142.82 = 106,337.88/x
  3. Step 3: Cross multiply
    438,761.88x = 658,142.82 × 106,337.88
  4. Step 4: Simplify right side
    438,761.88x = 69,985,512,216.02
  5. Step 5: Solve for x
    x = 69,985,512,216.02/438,761.88
  6. Step 6: Final answer
    x = 159,506.82

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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.