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Finding the Fourth Proportional to 323.46, 484.11 and 299.70

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Solution

The fourth proportional to 323.46, 484.11 and 299.70 is: 448.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.46 : 484.11 = 299.70 : x
  2. Step 2: Convert to fraction form
    323.46/484.11 = 299.70/x
  3. Step 3: Cross multiply
    323.46x = 484.11 × 299.70
  4. Step 4: Simplify right side
    323.46x = 145,087.77
  5. Step 5: Solve for x
    x = 145,087.77/323.46
  6. Step 6: Final answer
    x = 448.55

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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.