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Finding the Third Proportional to 535.50 and 1,320.75

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Solution

The third proportional to 535.50 and 1,320.75 is: 3,257.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.50 : 1,320.75 = 1,320.75 : x
  2. Step 2: Convert to fraction form
    535.50/1,320.75 = 1,320.75/x
  3. Step 3: Cross multiply
    535.50x = 1,320.75 × 1,320.75
  4. Step 4: Simplify right side
    535.50x = 1,744,380.56
  5. Step 5: Solve for x
    x = 1,744,380.56/535.50
  6. Step 6: Final answer
    x = 3,257.48

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Why These Related Problems?

These problems maintain the same ratio (2.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.