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Finding the Third Proportional to 502.56 and 768.25

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Solution

The third proportional to 502.56 and 768.25 is: 1,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.56 : 768.25 = 768.25 : x
  2. Step 2: Convert to fraction form
    502.56/768.25 = 768.25/x
  3. Step 3: Cross multiply
    502.56x = 768.25 × 768.25
  4. Step 4: Simplify right side
    502.56x = 590,208.06
  5. Step 5: Solve for x
    x = 590,208.06/502.56
  6. Step 6: Final answer
    x = 1,174.40

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.