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Finding the Fourth Proportional to 323.85, 447.18 and 264.05

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Solution

The fourth proportional to 323.85, 447.18 and 264.05 is: 364.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.85 : 447.18 = 264.05 : x
  2. Step 2: Convert to fraction form
    323.85/447.18 = 264.05/x
  3. Step 3: Cross multiply
    323.85x = 447.18 × 264.05
  4. Step 4: Simplify right side
    323.85x = 118,076.56
  5. Step 5: Solve for x
    x = 118,076.56/323.85
  6. Step 6: Final answer
    x = 364.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.