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Finding the Fourth Proportional to 491,222.76, 736,834.08 and 136,236.76

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Solution

The fourth proportional to 491,222.76, 736,834.08 and 136,236.76 is: 204,355.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,222.76 : 736,834.08 = 136,236.76 : x
  2. Step 2: Convert to fraction form
    491,222.76/736,834.08 = 136,236.76/x
  3. Step 3: Cross multiply
    491,222.76x = 736,834.08 × 136,236.76
  4. Step 4: Simplify right side
    491,222.76x = 100,383,887,716.78
  5. Step 5: Solve for x
    x = 100,383,887,716.78/491,222.76
  6. Step 6: Final answer
    x = 204,355.12

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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.