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Finding the Third Proportional to 100,512 and 220,896

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Solution

The third proportional to 100,512 and 220,896 is: 485,464.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,512 : 220,896 = 220,896 : x
  2. Step 2: Convert to fraction form
    100,512/220,896 = 220,896/x
  3. Step 3: Cross multiply
    100,512x = 220,896 × 220,896
  4. Step 4: Simplify right side
    100,512x = 48,795,042,816
  5. Step 5: Solve for x
    x = 48,795,042,816/100,512
  6. Step 6: Final answer
    x = 485,464.85

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.