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Finding the Third Proportional to 232 and 399

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Solution

The third proportional to 232 and 399 is: 686.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    232 : 399 = 399 : x
  2. Step 2: Convert to fraction form
    232/399 = 399/x
  3. Step 3: Cross multiply
    232x = 399 × 399
  4. Step 4: Simplify right side
    232x = 159,201
  5. Step 5: Solve for x
    x = 159,201/232
  6. Step 6: Final answer
    x = 686.21

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These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.