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Finding the Fourth Proportional to 491,286.57, 736,930.19 and 136,300.92

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Solution

The fourth proportional to 491,286.57, 736,930.19 and 136,300.92 is: 204,451.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,286.57 : 736,930.19 = 136,300.92 : x
  2. Step 2: Convert to fraction form
    491,286.57/736,930.19 = 136,300.92/x
  3. Step 3: Cross multiply
    491,286.57x = 736,930.19 × 136,300.92
  4. Step 4: Simplify right side
    491,286.57x = 100,444,262,872.78
  5. Step 5: Solve for x
    x = 100,444,262,872.78/491,286.57
  6. Step 6: Final answer
    x = 204,451.47

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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.