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Finding the Fourth Proportional to 267.44, 401.39 and 130.60

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Solution

The fourth proportional to 267.44, 401.39 and 130.60 is: 196.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.44 : 401.39 = 130.60 : x
  2. Step 2: Convert to fraction form
    267.44/401.39 = 130.60/x
  3. Step 3: Cross multiply
    267.44x = 401.39 × 130.60
  4. Step 4: Simplify right side
    267.44x = 52,421.87
  5. Step 5: Solve for x
    x = 52,421.87/267.44
  6. Step 6: Final answer
    x = 196.02

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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.