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Finding the Fourth Proportional to 330.97, 495.79 and 165.94

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Solution

The fourth proportional to 330.97, 495.79 and 165.94 is: 248.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.97 : 495.79 = 165.94 : x
  2. Step 2: Convert to fraction form
    330.97/495.79 = 165.94/x
  3. Step 3: Cross multiply
    330.97x = 495.79 × 165.94
  4. Step 4: Simplify right side
    330.97x = 82,269.74
  5. Step 5: Solve for x
    x = 82,269.74/330.97
  6. Step 6: Final answer
    x = 248.57

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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.