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Finding the Fourth Proportional to 491,230.65, 736,845.90 and 136,244.71

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Solution

The fourth proportional to 491,230.65, 736,845.90 and 136,244.71 is: 204,367.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,230.65 : 736,845.90 = 136,244.71 : x
  2. Step 2: Convert to fraction form
    491,230.65/736,845.90 = 136,244.71/x
  3. Step 3: Cross multiply
    491,230.65x = 736,845.90 × 136,244.71
  4. Step 4: Simplify right side
    491,230.65x = 100,391,356,370.33
  5. Step 5: Solve for x
    x = 100,391,356,370.33/491,230.65
  6. Step 6: Final answer
    x = 204,367.04

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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.