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Finding the Third Proportional to 637.88 and 966.15

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Solution

The third proportional to 637.88 and 966.15 is: 1,463.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.88 : 966.15 = 966.15 : x
  2. Step 2: Convert to fraction form
    637.88/966.15 = 966.15/x
  3. Step 3: Cross multiply
    637.88x = 966.15 × 966.15
  4. Step 4: Simplify right side
    637.88x = 933,439.03
  5. Step 5: Solve for x
    x = 933,439.03/637.88
  6. Step 6: Final answer
    x = 1,463.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.