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Finding the Third Proportional to 101,760 and 220,800

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Solution

The third proportional to 101,760 and 220,800 is: 479,094.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,760 : 220,800 = 220,800 : x
  2. Step 2: Convert to fraction form
    101,760/220,800 = 220,800/x
  3. Step 3: Cross multiply
    101,760x = 220,800 × 220,800
  4. Step 4: Simplify right side
    101,760x = 48,752,640,000
  5. Step 5: Solve for x
    x = 48,752,640,000/101,760
  6. Step 6: Final answer
    x = 479,094.34

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.