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Finding the Fourth Proportional to 198.47, 273.94 and 132.08

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Solution

The fourth proportional to 198.47, 273.94 and 132.08 is: 182.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.47 : 273.94 = 132.08 : x
  2. Step 2: Convert to fraction form
    198.47/273.94 = 132.08/x
  3. Step 3: Cross multiply
    198.47x = 273.94 × 132.08
  4. Step 4: Simplify right side
    198.47x = 36,182.35
  5. Step 5: Solve for x
    x = 36,182.35/198.47
  6. Step 6: Final answer
    x = 182.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.