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Finding the Third Proportional to 206,909.44 and 278,052.75

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Solution

The third proportional to 206,909.44 and 278,052.75 is: 373,657.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,909.44 : 278,052.75 = 278,052.75 : x
  2. Step 2: Convert to fraction form
    206,909.44/278,052.75 = 278,052.75/x
  3. Step 3: Cross multiply
    206,909.44x = 278,052.75 × 278,052.75
  4. Step 4: Simplify right side
    206,909.44x = 77,313,331,782.56
  5. Step 5: Solve for x
    x = 77,313,331,782.56/206,909.44
  6. Step 6: Final answer
    x = 373,657.83

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.