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Finding the Fourth Proportional to 1,163.38, 1,745.24 and 341.55

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Solution

The fourth proportional to 1,163.38, 1,745.24 and 341.55 is: 512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.38 : 1,745.24 = 341.55 : x
  2. Step 2: Convert to fraction form
    1,163.38/1,745.24 = 341.55/x
  3. Step 3: Cross multiply
    1,163.38x = 1,745.24 × 341.55
  4. Step 4: Simplify right side
    1,163.38x = 596,086.72
  5. Step 5: Solve for x
    x = 596,086.72/1,163.38
  6. Step 6: Final answer
    x = 512.37

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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.