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Finding the Third Proportional to 99,634 and 218,708

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Solution

The third proportional to 99,634 and 218,708 is: 480,089.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,634 : 218,708 = 218,708 : x
  2. Step 2: Convert to fraction form
    99,634/218,708 = 218,708/x
  3. Step 3: Cross multiply
    99,634x = 218,708 × 218,708
  4. Step 4: Simplify right side
    99,634x = 47,833,189,264
  5. Step 5: Solve for x
    x = 47,833,189,264/99,634
  6. Step 6: Final answer
    x = 480,089.02

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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.