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Finding the Fourth Proportional to 327.38, 451.80 and 196.52

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Solution

The fourth proportional to 327.38, 451.80 and 196.52 is: 271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.38 : 451.80 = 196.52 : x
  2. Step 2: Convert to fraction form
    327.38/451.80 = 196.52/x
  3. Step 3: Cross multiply
    327.38x = 451.80 × 196.52
  4. Step 4: Simplify right side
    327.38x = 88,785.48
  5. Step 5: Solve for x
    x = 88,785.48/327.38
  6. Step 6: Final answer
    x = 271.20

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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.