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Finding the Third Proportional to 666.56 and 1,002.38

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Solution

The third proportional to 666.56 and 1,002.38 is: 1,507.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    666.56 : 1,002.38 = 1,002.38 : x
  2. Step 2: Convert to fraction form
    666.56/1,002.38 = 1,002.38/x
  3. Step 3: Cross multiply
    666.56x = 1,002.38 × 1,002.38
  4. Step 4: Simplify right side
    666.56x = 1,004,755.64
  5. Step 5: Solve for x
    x = 1,004,755.64/666.56
  6. Step 6: Final answer
    x = 1,507.37

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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.