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Finding the Third Proportional to 135,760 and 298,230

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Solution

The third proportional to 135,760 and 298,230 is: 655,135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,760 : 298,230 = 298,230 : x
  2. Step 2: Convert to fraction form
    135,760/298,230 = 298,230/x
  3. Step 3: Cross multiply
    135,760x = 298,230 × 298,230
  4. Step 4: Simplify right side
    135,760x = 88,941,132,900
  5. Step 5: Solve for x
    x = 88,941,132,900/135,760
  6. Step 6: Final answer
    x = 655,135.04

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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.