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Finding the Third Proportional to 99,744 and 219,168

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Solution

The third proportional to 99,744 and 219,168 is: 481,578.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,744 : 219,168 = 219,168 : x
  2. Step 2: Convert to fraction form
    99,744/219,168 = 219,168/x
  3. Step 3: Cross multiply
    99,744x = 219,168 × 219,168
  4. Step 4: Simplify right side
    99,744x = 48,034,612,224
  5. Step 5: Solve for x
    x = 48,034,612,224/99,744
  6. Step 6: Final answer
    x = 481,578.96

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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.