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Finding the Fourth Proportional to 251.82, 347.37 and 163.32

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Solution

The fourth proportional to 251.82, 347.37 and 163.32 is: 225.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.82 : 347.37 = 163.32 : x
  2. Step 2: Convert to fraction form
    251.82/347.37 = 163.32/x
  3. Step 3: Cross multiply
    251.82x = 347.37 × 163.32
  4. Step 4: Simplify right side
    251.82x = 56,732.47
  5. Step 5: Solve for x
    x = 56,732.47/251.82
  6. Step 6: Final answer
    x = 225.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.