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Finding the Third Proportional to 99,186 and 218,028

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Solution

The third proportional to 99,186 and 218,028 is: 479,263.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,186 : 218,028 = 218,028 : x
  2. Step 2: Convert to fraction form
    99,186/218,028 = 218,028/x
  3. Step 3: Cross multiply
    99,186x = 218,028 × 218,028
  4. Step 4: Simplify right side
    99,186x = 47,536,208,784
  5. Step 5: Solve for x
    x = 47,536,208,784/99,186
  6. Step 6: Final answer
    x = 479,263.29

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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.