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Finding the Fourth Proportional to 350.30, 484.56 and 326.66

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Solution

The fourth proportional to 350.30, 484.56 and 326.66 is: 451.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.30 : 484.56 = 326.66 : x
  2. Step 2: Convert to fraction form
    350.30/484.56 = 326.66/x
  3. Step 3: Cross multiply
    350.30x = 484.56 × 326.66
  4. Step 4: Simplify right side
    350.30x = 158,286.37
  5. Step 5: Solve for x
    x = 158,286.37/350.30
  6. Step 6: Final answer
    x = 451.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.