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Finding the Third Proportional to 63,373 and 139,138.75

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Solution

The third proportional to 63,373 and 139,138.75 is: 305,486.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,373 : 139,138.75 = 139,138.75 : x
  2. Step 2: Convert to fraction form
    63,373/139,138.75 = 139,138.75/x
  3. Step 3: Cross multiply
    63,373x = 139,138.75 × 139,138.75
  4. Step 4: Simplify right side
    63,373x = 19,359,591,751.56
  5. Step 5: Solve for x
    x = 19,359,591,751.56/63,373
  6. Step 6: Final answer
    x = 305,486.43

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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.