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Finding the Third Proportional to 494 and 773.25

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Solution

The third proportional to 494 and 773.25 is: 1,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    494 : 773.25 = 773.25 : x
  2. Step 2: Convert to fraction form
    494/773.25 = 773.25/x
  3. Step 3: Cross multiply
    494x = 773.25 × 773.25
  4. Step 4: Simplify right side
    494x = 597,915.56
  5. Step 5: Solve for x
    x = 597,915.56/494
  6. Step 6: Final answer
    x = 1,210.36

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.