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Finding the Third Proportional to 126,850 and 278,810

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Solution

The third proportional to 126,850 and 278,810 is: 612,810.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,850 : 278,810 = 278,810 : x
  2. Step 2: Convert to fraction form
    126,850/278,810 = 278,810/x
  3. Step 3: Cross multiply
    126,850x = 278,810 × 278,810
  4. Step 4: Simplify right side
    126,850x = 77,735,016,100
  5. Step 5: Solve for x
    x = 77,735,016,100/126,850
  6. Step 6: Final answer
    x = 612,810.53

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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.