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Finding the Third Proportional to 516 and 674.25

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Solution

The third proportional to 516 and 674.25 is: 881.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    516 : 674.25 = 674.25 : x
  2. Step 2: Convert to fraction form
    516/674.25 = 674.25/x
  3. Step 3: Cross multiply
    516x = 674.25 × 674.25
  4. Step 4: Simplify right side
    516x = 454,613.06
  5. Step 5: Solve for x
    x = 454,613.06/516
  6. Step 6: Final answer
    x = 881.03

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.