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Finding the Fourth Proportional to 1,163.38, 1,745.32 and 341.66

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Solution

The fourth proportional to 1,163.38, 1,745.32 and 341.66 is: 512.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.38 : 1,745.32 = 341.66 : x
  2. Step 2: Convert to fraction form
    1,163.38/1,745.32 = 341.66/x
  3. Step 3: Cross multiply
    1,163.38x = 1,745.32 × 341.66
  4. Step 4: Simplify right side
    1,163.38x = 596,306.03
  5. Step 5: Solve for x
    x = 596,306.03/1,163.38
  6. Step 6: Final answer
    x = 512.56

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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.