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Finding the Third Proportional to 100,530 and 218,548

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Solution

The third proportional to 100,530 and 218,548 is: 475,114.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,530 : 218,548 = 218,548 : x
  2. Step 2: Convert to fraction form
    100,530/218,548 = 218,548/x
  3. Step 3: Cross multiply
    100,530x = 218,548 × 218,548
  4. Step 4: Simplify right side
    100,530x = 47,763,228,304
  5. Step 5: Solve for x
    x = 47,763,228,304/100,530
  6. Step 6: Final answer
    x = 475,114.18

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.