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Finding the Third Proportional to 326.77 and 480.54

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Solution

The third proportional to 326.77 and 480.54 is: 706.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.77 : 480.54 = 480.54 : x
  2. Step 2: Convert to fraction form
    326.77/480.54 = 480.54/x
  3. Step 3: Cross multiply
    326.77x = 480.54 × 480.54
  4. Step 4: Simplify right side
    326.77x = 230,920.61
  5. Step 5: Solve for x
    x = 230,920.61/326.77
  6. Step 6: Final answer
    x = 706.68

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.