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Finding the Third Proportional to 132 and 339.25

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Solution

The third proportional to 132 and 339.25 is: 871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132 : 339.25 = 339.25 : x
  2. Step 2: Convert to fraction form
    132/339.25 = 339.25/x
  3. Step 3: Cross multiply
    132x = 339.25 × 339.25
  4. Step 4: Simplify right side
    132x = 115,090.56
  5. Step 5: Solve for x
    x = 115,090.56/132
  6. Step 6: Final answer
    x = 871.90

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Why These Related Problems?

These problems maintain the same ratio (2.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.