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Finding the Fourth Proportional to 330.24, 456.39 and 232.50

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Solution

The fourth proportional to 330.24, 456.39 and 232.50 is: 321.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.24 : 456.39 = 232.50 : x
  2. Step 2: Convert to fraction form
    330.24/456.39 = 232.50/x
  3. Step 3: Cross multiply
    330.24x = 456.39 × 232.50
  4. Step 4: Simplify right side
    330.24x = 106,110.68
  5. Step 5: Solve for x
    x = 106,110.68/330.24
  6. Step 6: Final answer
    x = 321.31

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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.