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Finding the Third Proportional to 100,384 and 218,262

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Solution

The third proportional to 100,384 and 218,262 is: 474,560.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,384 : 218,262 = 218,262 : x
  2. Step 2: Convert to fraction form
    100,384/218,262 = 218,262/x
  3. Step 3: Cross multiply
    100,384x = 218,262 × 218,262
  4. Step 4: Simplify right side
    100,384x = 47,638,300,644
  5. Step 5: Solve for x
    x = 47,638,300,644/100,384
  6. Step 6: Final answer
    x = 474,560.69

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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.