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Finding the Fourth Proportional to 1,163.49, 1,745.18 and 341.73

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Solution

The fourth proportional to 1,163.49, 1,745.18 and 341.73 is: 512.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.49 : 1,745.18 = 341.73 : x
  2. Step 2: Convert to fraction form
    1,163.49/1,745.18 = 341.73/x
  3. Step 3: Cross multiply
    1,163.49x = 1,745.18 × 341.73
  4. Step 4: Simplify right side
    1,163.49x = 596,380.36
  5. Step 5: Solve for x
    x = 596,380.36/1,163.49
  6. Step 6: Final answer
    x = 512.58

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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.