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Finding the Fourth Proportional to 326.03, 446.68 and 321.47

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Solution

The fourth proportional to 326.03, 446.68 and 321.47 is: 440.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.03 : 446.68 = 321.47 : x
  2. Step 2: Convert to fraction form
    326.03/446.68 = 321.47/x
  3. Step 3: Cross multiply
    326.03x = 446.68 × 321.47
  4. Step 4: Simplify right side
    326.03x = 143,594.06
  5. Step 5: Solve for x
    x = 143,594.06/326.03
  6. Step 6: Final answer
    x = 440.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.