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Finding the Fourth Proportional to 352.18, 527.72 and 205.57

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Solution

The fourth proportional to 352.18, 527.72 and 205.57 is: 308.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.18 : 527.72 = 205.57 : x
  2. Step 2: Convert to fraction form
    352.18/527.72 = 205.57/x
  3. Step 3: Cross multiply
    352.18x = 527.72 × 205.57
  4. Step 4: Simplify right side
    352.18x = 108,479.73
  5. Step 5: Solve for x
    x = 108,479.73/352.18
  6. Step 6: Final answer
    x = 308.03

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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.