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Finding the Third Proportional to 263.81 and 396.98

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Solution

The third proportional to 263.81 and 396.98 is: 597.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.81 : 396.98 = 396.98 : x
  2. Step 2: Convert to fraction form
    263.81/396.98 = 396.98/x
  3. Step 3: Cross multiply
    263.81x = 396.98 × 396.98
  4. Step 4: Simplify right side
    263.81x = 157,596.59
  5. Step 5: Solve for x
    x = 157,596.59/263.81
  6. Step 6: Final answer
    x = 597.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.