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Finding the Third Proportional to 163.38 and 343.94

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Solution

The third proportional to 163.38 and 343.94 is: 724.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.38 : 343.94 = 343.94 : x
  2. Step 2: Convert to fraction form
    163.38/343.94 = 343.94/x
  3. Step 3: Cross multiply
    163.38x = 343.94 × 343.94
  4. Step 4: Simplify right side
    163.38x = 118,293.00
  5. Step 5: Solve for x
    x = 118,293.00/163.38
  6. Step 6: Final answer
    x = 724.06

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.