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Finding the Fourth Proportional to 352.88, 484.45 and 323.72

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Solution

The fourth proportional to 352.88, 484.45 and 323.72 is: 444.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.88 : 484.45 = 323.72 : x
  2. Step 2: Convert to fraction form
    352.88/484.45 = 323.72/x
  3. Step 3: Cross multiply
    352.88x = 484.45 × 323.72
  4. Step 4: Simplify right side
    352.88x = 156,826.15
  5. Step 5: Solve for x
    x = 156,826.15/352.88
  6. Step 6: Final answer
    x = 444.42

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.