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Finding the Fourth Proportional to 132.59, 198.57 and 130.16

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Solution

The fourth proportional to 132.59, 198.57 and 130.16 is: 194.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.59 : 198.57 = 130.16 : x
  2. Step 2: Convert to fraction form
    132.59/198.57 = 130.16/x
  3. Step 3: Cross multiply
    132.59x = 198.57 × 130.16
  4. Step 4: Simplify right side
    132.59x = 25,845.87
  5. Step 5: Solve for x
    x = 25,845.87/132.59
  6. Step 6: Final answer
    x = 194.93

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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.