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Finding the Fourth Proportional to 325.12, 486.96 and 233.92

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Solution

The fourth proportional to 325.12, 486.96 and 233.92 is: 350.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.12 : 486.96 = 233.92 : x
  2. Step 2: Convert to fraction form
    325.12/486.96 = 233.92/x
  3. Step 3: Cross multiply
    325.12x = 486.96 × 233.92
  4. Step 4: Simplify right side
    325.12x = 113,909.68
  5. Step 5: Solve for x
    x = 113,909.68/325.12
  6. Step 6: Final answer
    x = 350.36

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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.