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Finding the Third Proportional to 215,771 and 440,110

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Solution

The third proportional to 215,771 and 440,110 is: 897,696.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,771 : 440,110 = 440,110 : x
  2. Step 2: Convert to fraction form
    215,771/440,110 = 440,110/x
  3. Step 3: Cross multiply
    215,771x = 440,110 × 440,110
  4. Step 4: Simplify right side
    215,771x = 193,696,812,100
  5. Step 5: Solve for x
    x = 193,696,812,100/215,771
  6. Step 6: Final answer
    x = 897,696.22

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.