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Finding the Third Proportional to 99,712 and 218,797

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Solution

The third proportional to 99,712 and 218,797 is: 480,103.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,712 : 218,797 = 218,797 : x
  2. Step 2: Convert to fraction form
    99,712/218,797 = 218,797/x
  3. Step 3: Cross multiply
    99,712x = 218,797 × 218,797
  4. Step 4: Simplify right side
    99,712x = 47,872,127,209
  5. Step 5: Solve for x
    x = 47,872,127,209/99,712
  6. Step 6: Final answer
    x = 480,103.97

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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.