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Finding the Fourth Proportional to 198.02, 296.88 and 132.92

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Solution

The fourth proportional to 198.02, 296.88 and 132.92 is: 199.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.02 : 296.88 = 132.92 : x
  2. Step 2: Convert to fraction form
    198.02/296.88 = 132.92/x
  3. Step 3: Cross multiply
    198.02x = 296.88 × 132.92
  4. Step 4: Simplify right side
    198.02x = 39,459.14
  5. Step 5: Solve for x
    x = 39,459.14/198.02
  6. Step 6: Final answer
    x = 199.27

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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.