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Finding the Third Proportional to 40,212 and 87,874

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Solution

The third proportional to 40,212 and 87,874 is: 192,028.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,212 : 87,874 = 87,874 : x
  2. Step 2: Convert to fraction form
    40,212/87,874 = 87,874/x
  3. Step 3: Cross multiply
    40,212x = 87,874 × 87,874
  4. Step 4: Simplify right side
    40,212x = 7,721,839,876
  5. Step 5: Solve for x
    x = 7,721,839,876/40,212
  6. Step 6: Final answer
    x = 192,028.25

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.