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Finding the Third Proportional to 101,811 and 221,694

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Solution

The third proportional to 101,811 and 221,694 is: 482,739.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,811 : 221,694 = 221,694 : x
  2. Step 2: Convert to fraction form
    101,811/221,694 = 221,694/x
  3. Step 3: Cross multiply
    101,811x = 221,694 × 221,694
  4. Step 4: Simplify right side
    101,811x = 49,148,229,636
  5. Step 5: Solve for x
    x = 49,148,229,636/101,811
  6. Step 6: Final answer
    x = 482,739.88

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.