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Finding the Third Proportional to 263.72 and 291.94

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Solution

The third proportional to 263.72 and 291.94 is: 323.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.72 : 291.94 = 291.94 : x
  2. Step 2: Convert to fraction form
    263.72/291.94 = 291.94/x
  3. Step 3: Cross multiply
    263.72x = 291.94 × 291.94
  4. Step 4: Simplify right side
    263.72x = 85,227.50
  5. Step 5: Solve for x
    x = 85,227.50/263.72
  6. Step 6: Final answer
    x = 323.18

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.