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Finding the Fourth Proportional to 330.95, 496.02 and 239.96

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Solution

The fourth proportional to 330.95, 496.02 and 239.96 is: 359.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.95 : 496.02 = 239.96 : x
  2. Step 2: Convert to fraction form
    330.95/496.02 = 239.96/x
  3. Step 3: Cross multiply
    330.95x = 496.02 × 239.96
  4. Step 4: Simplify right side
    330.95x = 119,027.10
  5. Step 5: Solve for x
    x = 119,027.10/330.95
  6. Step 6: Final answer
    x = 359.65

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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.