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Finding the Third Proportional to 100,867 and 219,475

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Solution

The third proportional to 100,867 and 219,475 is: 477,552.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,867 : 219,475 = 219,475 : x
  2. Step 2: Convert to fraction form
    100,867/219,475 = 219,475/x
  3. Step 3: Cross multiply
    100,867x = 219,475 × 219,475
  4. Step 4: Simplify right side
    100,867x = 48,169,275,625
  5. Step 5: Solve for x
    x = 48,169,275,625/100,867
  6. Step 6: Final answer
    x = 477,552.38

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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.