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Finding the Third Proportional to 163.75 and 334.88

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Solution

The third proportional to 163.75 and 334.88 is: 684.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.75 : 334.88 = 334.88 : x
  2. Step 2: Convert to fraction form
    163.75/334.88 = 334.88/x
  3. Step 3: Cross multiply
    163.75x = 334.88 × 334.88
  4. Step 4: Simplify right side
    163.75x = 112,141.27
  5. Step 5: Solve for x
    x = 112,141.27/163.75
  6. Step 6: Final answer
    x = 684.83

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.