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Finding the Fourth Proportional to 329.11, 495.52 and 290.83

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Solution

The fourth proportional to 329.11, 495.52 and 290.83 is: 437.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.11 : 495.52 = 290.83 : x
  2. Step 2: Convert to fraction form
    329.11/495.52 = 290.83/x
  3. Step 3: Cross multiply
    329.11x = 495.52 × 290.83
  4. Step 4: Simplify right side
    329.11x = 144,112.08
  5. Step 5: Solve for x
    x = 144,112.08/329.11
  6. Step 6: Final answer
    x = 437.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.