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Finding the Third Proportional to 126,958 and 278,824

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Solution

The third proportional to 126,958 and 278,824 is: 612,350.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,958 : 278,824 = 278,824 : x
  2. Step 2: Convert to fraction form
    126,958/278,824 = 278,824/x
  3. Step 3: Cross multiply
    126,958x = 278,824 × 278,824
  4. Step 4: Simplify right side
    126,958x = 77,742,822,976
  5. Step 5: Solve for x
    x = 77,742,822,976/126,958
  6. Step 6: Final answer
    x = 612,350.72

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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.