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Finding the Third Proportional to 531.84 and 809.44

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Solution

The third proportional to 531.84 and 809.44 is: 1,231.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.84 : 809.44 = 809.44 : x
  2. Step 2: Convert to fraction form
    531.84/809.44 = 809.44/x
  3. Step 3: Cross multiply
    531.84x = 809.44 × 809.44
  4. Step 4: Simplify right side
    531.84x = 655,189.07
  5. Step 5: Solve for x
    x = 655,189.07/531.84
  6. Step 6: Final answer
    x = 1,231.92

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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.