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Finding the Third Proportional to 45,553 and 99,880

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Solution

The third proportional to 45,553 and 99,880 is: 218,997.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,553 : 99,880 = 99,880 : x
  2. Step 2: Convert to fraction form
    45,553/99,880 = 99,880/x
  3. Step 3: Cross multiply
    45,553x = 99,880 × 99,880
  4. Step 4: Simplify right side
    45,553x = 9,976,014,400
  5. Step 5: Solve for x
    x = 9,976,014,400/45,553
  6. Step 6: Final answer
    x = 218,997.97

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.