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Finding the Third Proportional to 126,909.75 and 211,505.25

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Solution

The third proportional to 126,909.75 and 211,505.25 is: 352,490.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,909.75 : 211,505.25 = 211,505.25 : x
  2. Step 2: Convert to fraction form
    126,909.75/211,505.25 = 211,505.25/x
  3. Step 3: Cross multiply
    126,909.75x = 211,505.25 × 211,505.25
  4. Step 4: Simplify right side
    126,909.75x = 44,734,470,777.56
  5. Step 5: Solve for x
    x = 44,734,470,777.56/126,909.75
  6. Step 6: Final answer
    x = 352,490.42

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.