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Finding the Third Proportional to 118.50 and 132

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Solution

The third proportional to 118.50 and 132 is: 147.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.50 : 132 = 132 : x
  2. Step 2: Convert to fraction form
    118.50/132 = 132/x
  3. Step 3: Cross multiply
    118.50x = 132 × 132
  4. Step 4: Simplify right side
    118.50x = 17,424
  5. Step 5: Solve for x
    x = 17,424/118.50
  6. Step 6: Final answer
    x = 147.04

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.