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Finding the Third Proportional to 326.38 and 383.75

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Solution

The third proportional to 326.38 and 383.75 is: 451.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.38 : 383.75 = 383.75 : x
  2. Step 2: Convert to fraction form
    326.38/383.75 = 383.75/x
  3. Step 3: Cross multiply
    326.38x = 383.75 × 383.75
  4. Step 4: Simplify right side
    326.38x = 147,264.06
  5. Step 5: Solve for x
    x = 147,264.06/326.38
  6. Step 6: Final answer
    x = 451.21

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.