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Finding the Fourth Proportional to 237.15, 327.21 and 132.21

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Solution

The fourth proportional to 237.15, 327.21 and 132.21 is: 182.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.15 : 327.21 = 132.21 : x
  2. Step 2: Convert to fraction form
    237.15/327.21 = 132.21/x
  3. Step 3: Cross multiply
    237.15x = 327.21 × 132.21
  4. Step 4: Simplify right side
    237.15x = 43,260.43
  5. Step 5: Solve for x
    x = 43,260.43/237.15
  6. Step 6: Final answer
    x = 182.42

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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.