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Finding the Fourth Proportional to 435,493.62, 653,240.18 and 135,999.86

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Solution

The fourth proportional to 435,493.62, 653,240.18 and 135,999.86 is: 203,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,493.62 : 653,240.18 = 135,999.86 : x
  2. Step 2: Convert to fraction form
    435,493.62/653,240.18 = 135,999.86/x
  3. Step 3: Cross multiply
    435,493.62x = 653,240.18 × 135,999.86
  4. Step 4: Simplify right side
    435,493.62x = 88,840,573,026.37
  5. Step 5: Solve for x
    x = 88,840,573,026.37/435,493.62
  6. Step 6: Final answer
    x = 203,999.71

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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.