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Finding the Fourth Proportional to 499.10, 747.77 and 267.44

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Solution

The fourth proportional to 499.10, 747.77 and 267.44 is: 400.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.10 : 747.77 = 267.44 : x
  2. Step 2: Convert to fraction form
    499.10/747.77 = 267.44/x
  3. Step 3: Cross multiply
    499.10x = 747.77 × 267.44
  4. Step 4: Simplify right side
    499.10x = 199,978.53
  5. Step 5: Solve for x
    x = 199,978.53/499.10
  6. Step 6: Final answer
    x = 400.68

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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.