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Finding the Fourth Proportional to 327, 491.22 and 303.96

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Solution

The fourth proportional to 327, 491.22 and 303.96 is: 456.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    327 : 491.22 = 303.96 : x
  2. Step 2: Convert to fraction form
    327/491.22 = 303.96/x
  3. Step 3: Cross multiply
    327x = 491.22 × 303.96
  4. Step 4: Simplify right side
    327x = 149,311.23
  5. Step 5: Solve for x
    x = 149,311.23/327
  6. Step 6: Final answer
    x = 456.61

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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.