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Finding the Third Proportional to 100,827 and 220,122

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Solution

The third proportional to 100,827 and 220,122 is: 480,562.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,827 : 220,122 = 220,122 : x
  2. Step 2: Convert to fraction form
    100,827/220,122 = 220,122/x
  3. Step 3: Cross multiply
    100,827x = 220,122 × 220,122
  4. Step 4: Simplify right side
    100,827x = 48,453,694,884
  5. Step 5: Solve for x
    x = 48,453,694,884/100,827
  6. Step 6: Final answer
    x = 480,562.70

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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.