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Finding the Third Proportional to 57,840 and 126,288

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Solution

The third proportional to 57,840 and 126,288 is: 275,737.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,840 : 126,288 = 126,288 : x
  2. Step 2: Convert to fraction form
    57,840/126,288 = 126,288/x
  3. Step 3: Cross multiply
    57,840x = 126,288 × 126,288
  4. Step 4: Simplify right side
    57,840x = 15,948,658,944
  5. Step 5: Solve for x
    x = 15,948,658,944/57,840
  6. Step 6: Final answer
    x = 275,737.53

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.