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Finding the Fourth Proportional to 325.09, 450.44 and 318.18

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Solution

The fourth proportional to 325.09, 450.44 and 318.18 is: 440.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.09 : 450.44 = 318.18 : x
  2. Step 2: Convert to fraction form
    325.09/450.44 = 318.18/x
  3. Step 3: Cross multiply
    325.09x = 450.44 × 318.18
  4. Step 4: Simplify right side
    325.09x = 143,321.00
  5. Step 5: Solve for x
    x = 143,321.00/325.09
  6. Step 6: Final answer
    x = 440.87

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.