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Finding the Fourth Proportional to 491,165.89, 736,748.87 and 136,179.92

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Solution

The fourth proportional to 491,165.89, 736,748.87 and 136,179.92 is: 204,269.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,165.89 : 736,748.87 = 136,179.92 : x
  2. Step 2: Convert to fraction form
    491,165.89/736,748.87 = 136,179.92/x
  3. Step 3: Cross multiply
    491,165.89x = 736,748.87 × 136,179.92
  4. Step 4: Simplify right side
    491,165.89x = 100,330,402,176.69
  5. Step 5: Solve for x
    x = 100,330,402,176.69/491,165.89
  6. Step 6: Final answer
    x = 204,269.89

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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.