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Finding the Third Proportional to 137.75 and 226.50

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Solution

The third proportional to 137.75 and 226.50 is: 372.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    137.75 : 226.50 = 226.50 : x
  2. Step 2: Convert to fraction form
    137.75/226.50 = 226.50/x
  3. Step 3: Cross multiply
    137.75x = 226.50 × 226.50
  4. Step 4: Simplify right side
    137.75x = 51,302.25
  5. Step 5: Solve for x
    x = 51,302.25/137.75
  6. Step 6: Final answer
    x = 372.43

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.