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Finding the Fourth Proportional to 352.12, 528.98 and 254.92

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Solution

The fourth proportional to 352.12, 528.98 and 254.92 is: 382.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.12 : 528.98 = 254.92 : x
  2. Step 2: Convert to fraction form
    352.12/528.98 = 254.92/x
  3. Step 3: Cross multiply
    352.12x = 528.98 × 254.92
  4. Step 4: Simplify right side
    352.12x = 134,847.58
  5. Step 5: Solve for x
    x = 134,847.58/352.12
  6. Step 6: Final answer
    x = 382.96

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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.