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Finding the Third Proportional to 427.69 and 565.88

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Solution

The third proportional to 427.69 and 565.88 is: 748.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    427.69 : 565.88 = 565.88 : x
  2. Step 2: Convert to fraction form
    427.69/565.88 = 565.88/x
  3. Step 3: Cross multiply
    427.69x = 565.88 × 565.88
  4. Step 4: Simplify right side
    427.69x = 320,214.52
  5. Step 5: Solve for x
    x = 320,214.52/427.69
  6. Step 6: Final answer
    x = 748.71

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.