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Finding the Fourth Proportional to 379.92, 524.25 and 232.70

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Solution

The fourth proportional to 379.92, 524.25 and 232.70 is: 321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.92 : 524.25 = 232.70 : x
  2. Step 2: Convert to fraction form
    379.92/524.25 = 232.70/x
  3. Step 3: Cross multiply
    379.92x = 524.25 × 232.70
  4. Step 4: Simplify right side
    379.92x = 121,992.98
  5. Step 5: Solve for x
    x = 121,992.98/379.92
  6. Step 6: Final answer
    x = 321.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.