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Finding the Third Proportional to 118 and 246.25

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Solution

The third proportional to 118 and 246.25 is: 513.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118 : 246.25 = 246.25 : x
  2. Step 2: Convert to fraction form
    118/246.25 = 246.25/x
  3. Step 3: Cross multiply
    118x = 246.25 × 246.25
  4. Step 4: Simplify right side
    118x = 60,639.06
  5. Step 5: Solve for x
    x = 60,639.06/118
  6. Step 6: Final answer
    x = 513.89

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.