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Finding the Third Proportional to 163.38 and 340.63

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Solution

The third proportional to 163.38 and 340.63 is: 710.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.38 : 340.63 = 340.63 : x
  2. Step 2: Convert to fraction form
    163.38/340.63 = 340.63/x
  3. Step 3: Cross multiply
    163.38x = 340.63 × 340.63
  4. Step 4: Simplify right side
    163.38x = 116,025.39
  5. Step 5: Solve for x
    x = 116,025.39/163.38
  6. Step 6: Final answer
    x = 710.18

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.