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Finding the Fourth Proportional to 327.45, 490.77 and 301.53

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Solution

The fourth proportional to 327.45, 490.77 and 301.53 is: 451.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.45 : 490.77 = 301.53 : x
  2. Step 2: Convert to fraction form
    327.45/490.77 = 301.53/x
  3. Step 3: Cross multiply
    327.45x = 490.77 × 301.53
  4. Step 4: Simplify right side
    327.45x = 147,981.88
  5. Step 5: Solve for x
    x = 147,981.88/327.45
  6. Step 6: Final answer
    x = 451.92

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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.