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Finding the Fourth Proportional to 132.28, 199.87 and 130.96

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Solution

The fourth proportional to 132.28, 199.87 and 130.96 is: 197.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.28 : 199.87 = 130.96 : x
  2. Step 2: Convert to fraction form
    132.28/199.87 = 130.96/x
  3. Step 3: Cross multiply
    132.28x = 199.87 × 130.96
  4. Step 4: Simplify right side
    132.28x = 26,174.98
  5. Step 5: Solve for x
    x = 26,174.98/132.28
  6. Step 6: Final answer
    x = 197.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.