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Finding the Fourth Proportional to 327.62, 451.98 and 211.25

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Solution

The fourth proportional to 327.62, 451.98 and 211.25 is: 291.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.62 : 451.98 = 211.25 : x
  2. Step 2: Convert to fraction form
    327.62/451.98 = 211.25/x
  3. Step 3: Cross multiply
    327.62x = 451.98 × 211.25
  4. Step 4: Simplify right side
    327.62x = 95,478.52
  5. Step 5: Solve for x
    x = 95,478.52/327.62
  6. Step 6: Final answer
    x = 291.44

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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.