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Finding the Third Proportional to 142,668 and 220,796

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Solution

The third proportional to 142,668 and 220,796 is: 341,708.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,668 : 220,796 = 220,796 : x
  2. Step 2: Convert to fraction form
    142,668/220,796 = 220,796/x
  3. Step 3: Cross multiply
    142,668x = 220,796 × 220,796
  4. Step 4: Simplify right side
    142,668x = 48,750,873,616
  5. Step 5: Solve for x
    x = 48,750,873,616/142,668
  6. Step 6: Final answer
    x = 341,708.54

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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.