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Finding the Third Proportional to 503.75 and 654.25

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Solution

The third proportional to 503.75 and 654.25 is: 849.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.75 : 654.25 = 654.25 : x
  2. Step 2: Convert to fraction form
    503.75/654.25 = 654.25/x
  3. Step 3: Cross multiply
    503.75x = 654.25 × 654.25
  4. Step 4: Simplify right side
    503.75x = 428,043.06
  5. Step 5: Solve for x
    x = 428,043.06/503.75
  6. Step 6: Final answer
    x = 849.71

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.