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Finding the Third Proportional to 553.92 and 751.36

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Solution

The third proportional to 553.92 and 751.36 is: 1,019.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.92 : 751.36 = 751.36 : x
  2. Step 2: Convert to fraction form
    553.92/751.36 = 751.36/x
  3. Step 3: Cross multiply
    553.92x = 751.36 × 751.36
  4. Step 4: Simplify right side
    553.92x = 564,540.91
  5. Step 5: Solve for x
    x = 564,540.91/553.92
  6. Step 6: Final answer
    x = 1,019.17

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.