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Finding the Fourth Proportional to 327.04, 490.42 and 132.03

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Solution

The fourth proportional to 327.04, 490.42 and 132.03 is: 197.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.04 : 490.42 = 132.03 : x
  2. Step 2: Convert to fraction form
    327.04/490.42 = 132.03/x
  3. Step 3: Cross multiply
    327.04x = 490.42 × 132.03
  4. Step 4: Simplify right side
    327.04x = 64,750.15
  5. Step 5: Solve for x
    x = 64,750.15/327.04
  6. Step 6: Final answer
    x = 197.99

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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.