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Finding the Third Proportional to 237 and 422

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Solution

The third proportional to 237 and 422 is: 751.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    237 : 422 = 422 : x
  2. Step 2: Convert to fraction form
    237/422 = 422/x
  3. Step 3: Cross multiply
    237x = 422 × 422
  4. Step 4: Simplify right side
    237x = 178,084
  5. Step 5: Solve for x
    x = 178,084/237
  6. Step 6: Final answer
    x = 751.41

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These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.