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Finding the Fourth Proportional to 268,481.18, 402,658.17 and 100,080.56

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Solution

The fourth proportional to 268,481.18, 402,658.17 and 100,080.56 is: 150,097.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,481.18 : 402,658.17 = 100,080.56 : x
  2. Step 2: Convert to fraction form
    268,481.18/402,658.17 = 100,080.56/x
  3. Step 3: Cross multiply
    268,481.18x = 402,658.17 × 100,080.56
  4. Step 4: Simplify right side
    268,481.18x = 40,298,253,128.88
  5. Step 5: Solve for x
    x = 40,298,253,128.88/268,481.18
  6. Step 6: Final answer
    x = 150,097.13

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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.