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Finding the Third Proportional to 198,342 and 436,059

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Solution

The third proportional to 198,342 and 436,059 is: 958,684.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,342 : 436,059 = 436,059 : x
  2. Step 2: Convert to fraction form
    198,342/436,059 = 436,059/x
  3. Step 3: Cross multiply
    198,342x = 436,059 × 436,059
  4. Step 4: Simplify right side
    198,342x = 190,147,451,481
  5. Step 5: Solve for x
    x = 190,147,451,481/198,342
  6. Step 6: Final answer
    x = 958,684.75

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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.