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Finding the Third Proportional to 101,278 and 221,626

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Solution

The third proportional to 101,278 and 221,626 is: 484,982.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,278 : 221,626 = 221,626 : x
  2. Step 2: Convert to fraction form
    101,278/221,626 = 221,626/x
  3. Step 3: Cross multiply
    101,278x = 221,626 × 221,626
  4. Step 4: Simplify right side
    101,278x = 49,118,083,876
  5. Step 5: Solve for x
    x = 49,118,083,876/101,278
  6. Step 6: Final answer
    x = 484,982.76

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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.