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Finding the Fourth Proportional to 327.91, 452.52 and 211.67

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Solution

The fourth proportional to 327.91, 452.52 and 211.67 is: 292.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.91 : 452.52 = 211.67 : x
  2. Step 2: Convert to fraction form
    327.91/452.52 = 211.67/x
  3. Step 3: Cross multiply
    327.91x = 452.52 × 211.67
  4. Step 4: Simplify right side
    327.91x = 95,785.51
  5. Step 5: Solve for x
    x = 95,785.51/327.91
  6. Step 6: Final answer
    x = 292.11

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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.