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Finding the Third Proportional to 263.75 and 374.38

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Solution

The third proportional to 263.75 and 374.38 is: 531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.75 : 374.38 = 374.38 : x
  2. Step 2: Convert to fraction form
    263.75/374.38 = 374.38/x
  3. Step 3: Cross multiply
    263.75x = 374.38 × 374.38
  4. Step 4: Simplify right side
    263.75x = 140,156.64
  5. Step 5: Solve for x
    x = 140,156.64/263.75
  6. Step 6: Final answer
    x = 531.40

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.