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Finding the Fourth Proportional to 322.44, 481.12 and 302.85

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Solution

The fourth proportional to 322.44, 481.12 and 302.85 is: 451.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.44 : 481.12 = 302.85 : x
  2. Step 2: Convert to fraction form
    322.44/481.12 = 302.85/x
  3. Step 3: Cross multiply
    322.44x = 481.12 × 302.85
  4. Step 4: Simplify right side
    322.44x = 145,707.19
  5. Step 5: Solve for x
    x = 145,707.19/322.44
  6. Step 6: Final answer
    x = 451.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.