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Finding the Third Proportional to 410.75 and 546.75

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Solution

The third proportional to 410.75 and 546.75 is: 727.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.75 : 546.75 = 546.75 : x
  2. Step 2: Convert to fraction form
    410.75/546.75 = 546.75/x
  3. Step 3: Cross multiply
    410.75x = 546.75 × 546.75
  4. Step 4: Simplify right side
    410.75x = 298,935.56
  5. Step 5: Solve for x
    x = 298,935.56/410.75
  6. Step 6: Final answer
    x = 727.78

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.