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Finding the Third Proportional to 533 and 810.75

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Solution

The third proportional to 533 and 810.75 is: 1,233.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    533 : 810.75 = 810.75 : x
  2. Step 2: Convert to fraction form
    533/810.75 = 810.75/x
  3. Step 3: Cross multiply
    533x = 810.75 × 810.75
  4. Step 4: Simplify right side
    533x = 657,315.56
  5. Step 5: Solve for x
    x = 657,315.56/533
  6. Step 6: Final answer
    x = 1,233.24

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.