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Finding the Fourth Proportional to 444.98, 667.74 and 323.48

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Solution

The fourth proportional to 444.98, 667.74 and 323.48 is: 485.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.98 : 667.74 = 323.48 : x
  2. Step 2: Convert to fraction form
    444.98/667.74 = 323.48/x
  3. Step 3: Cross multiply
    444.98x = 667.74 × 323.48
  4. Step 4: Simplify right side
    444.98x = 216,000.54
  5. Step 5: Solve for x
    x = 216,000.54/444.98
  6. Step 6: Final answer
    x = 485.42

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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.