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Finding the Third Proportional to 117.28 and 237.73

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Solution

The third proportional to 117.28 and 237.73 is: 481.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.28 : 237.73 = 237.73 : x
  2. Step 2: Convert to fraction form
    117.28/237.73 = 237.73/x
  3. Step 3: Cross multiply
    117.28x = 237.73 × 237.73
  4. Step 4: Simplify right side
    117.28x = 56,513.92
  5. Step 5: Solve for x
    x = 56,513.92/117.28
  6. Step 6: Final answer
    x = 481.87

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.