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Finding the Fourth Proportional to 451,498.72, 676,988.88 and 135,862.24

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Solution

The fourth proportional to 451,498.72, 676,988.88 and 135,862.24 is: 203,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,498.72 : 676,988.88 = 135,862.24 : x
  2. Step 2: Convert to fraction form
    451,498.72/676,988.88 = 135,862.24/x
  3. Step 3: Cross multiply
    451,498.72x = 676,988.88 × 135,862.24
  4. Step 4: Simplify right side
    451,498.72x = 91,977,225,691.89
  5. Step 5: Solve for x
    x = 91,977,225,691.89/451,498.72
  6. Step 6: Final answer
    x = 203,715.36

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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.