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Finding the Fourth Proportional to 438,761.32, 658,141.98 and 106,337.32

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Solution

The fourth proportional to 438,761.32, 658,141.98 and 106,337.32 is: 159,505.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,761.32 : 658,141.98 = 106,337.32 : x
  2. Step 2: Convert to fraction form
    438,761.32/658,141.98 = 106,337.32/x
  3. Step 3: Cross multiply
    438,761.32x = 658,141.98 × 106,337.32
  4. Step 4: Simplify right side
    438,761.32x = 69,985,054,332.69
  5. Step 5: Solve for x
    x = 69,985,054,332.69/438,761.32
  6. Step 6: Final answer
    x = 159,505.98

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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.