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Finding the Third Proportional to 140,854.50 and 218,442.75

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Solution

The third proportional to 140,854.50 and 218,442.75 is: 338,769.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,854.50 : 218,442.75 = 218,442.75 : x
  2. Step 2: Convert to fraction form
    140,854.50/218,442.75 = 218,442.75/x
  3. Step 3: Cross multiply
    140,854.50x = 218,442.75 × 218,442.75
  4. Step 4: Simplify right side
    140,854.50x = 47,717,235,027.56
  5. Step 5: Solve for x
    x = 47,717,235,027.56/140,854.50
  6. Step 6: Final answer
    x = 338,769.69

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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.