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Finding the Fourth Proportional to 352.12, 528.12 and 95.62

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Solution

The fourth proportional to 352.12, 528.12 and 95.62 is: 143.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.12 : 528.12 = 95.62 : x
  2. Step 2: Convert to fraction form
    352.12/528.12 = 95.62/x
  3. Step 3: Cross multiply
    352.12x = 528.12 × 95.62
  4. Step 4: Simplify right side
    352.12x = 50,498.83
  5. Step 5: Solve for x
    x = 50,498.83/352.12
  6. Step 6: Final answer
    x = 143.41

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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.