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Finding the Third Proportional to 142.13 and 246

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Solution

The third proportional to 142.13 and 246 is: 425.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    142.13 : 246 = 246 : x
  2. Step 2: Convert to fraction form
    142.13/246 = 246/x
  3. Step 3: Cross multiply
    142.13x = 246 × 246
  4. Step 4: Simplify right side
    142.13x = 60,516
  5. Step 5: Solve for x
    x = 60,516/142.13
  6. Step 6: Final answer
    x = 425.79

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Why These Related Problems?

These problems maintain the same ratio (1.73) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.