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Finding the Fourth Proportional to 352.11, 528.27 and 230.61

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Solution

The fourth proportional to 352.11, 528.27 and 230.61 is: 345.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.11 : 528.27 = 230.61 : x
  2. Step 2: Convert to fraction form
    352.11/528.27 = 230.61/x
  3. Step 3: Cross multiply
    352.11x = 528.27 × 230.61
  4. Step 4: Simplify right side
    352.11x = 121,824.34
  5. Step 5: Solve for x
    x = 121,824.34/352.11
  6. Step 6: Final answer
    x = 345.98

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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.