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Finding the Third Proportional to 66,702 and 140,908

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Solution

The third proportional to 66,702 and 140,908 is: 297,668.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,702 : 140,908 = 140,908 : x
  2. Step 2: Convert to fraction form
    66,702/140,908 = 140,908/x
  3. Step 3: Cross multiply
    66,702x = 140,908 × 140,908
  4. Step 4: Simplify right side
    66,702x = 19,855,064,464
  5. Step 5: Solve for x
    x = 19,855,064,464/66,702
  6. Step 6: Final answer
    x = 297,668.20

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.