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Finding the Fourth Proportional to 1,163.39, 1,745.17 and 330.44

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Solution

The fourth proportional to 1,163.39, 1,745.17 and 330.44 is: 495.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.39 : 1,745.17 = 330.44 : x
  2. Step 2: Convert to fraction form
    1,163.39/1,745.17 = 330.44/x
  3. Step 3: Cross multiply
    1,163.39x = 1,745.17 × 330.44
  4. Step 4: Simplify right side
    1,163.39x = 576,665.66
  5. Step 5: Solve for x
    x = 576,665.66/1,163.39
  6. Step 6: Final answer
    x = 495.68

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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.