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Finding the Third Proportional to 63,508 and 139,974

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Solution

The third proportional to 63,508 and 139,974 is: 308,507.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,508 : 139,974 = 139,974 : x
  2. Step 2: Convert to fraction form
    63,508/139,974 = 139,974/x
  3. Step 3: Cross multiply
    63,508x = 139,974 × 139,974
  4. Step 4: Simplify right side
    63,508x = 19,592,720,676
  5. Step 5: Solve for x
    x = 19,592,720,676/63,508
  6. Step 6: Final answer
    x = 308,507.92

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.