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Finding the Third Proportional to 140,820.75 and 217,914.75

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Solution

The third proportional to 140,820.75 and 217,914.75 is: 337,214.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,820.75 : 217,914.75 = 217,914.75 : x
  2. Step 2: Convert to fraction form
    140,820.75/217,914.75 = 217,914.75/x
  3. Step 3: Cross multiply
    140,820.75x = 217,914.75 × 217,914.75
  4. Step 4: Simplify right side
    140,820.75x = 47,486,838,267.56
  5. Step 5: Solve for x
    x = 47,486,838,267.56/140,820.75
  6. Step 6: Final answer
    x = 337,214.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.