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Finding the Third Proportional to 263.81 and 571.78

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Solution

The third proportional to 263.81 and 571.78 is: 1,239.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.81 : 571.78 = 571.78 : x
  2. Step 2: Convert to fraction form
    263.81/571.78 = 571.78/x
  3. Step 3: Cross multiply
    263.81x = 571.78 × 571.78
  4. Step 4: Simplify right side
    263.81x = 326,933.80
  5. Step 5: Solve for x
    x = 326,933.80/263.81
  6. Step 6: Final answer
    x = 1,239.27

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.