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Finding the Fourth Proportional to 327.74, 452.38 and 187.94

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Solution

The fourth proportional to 327.74, 452.38 and 187.94 is: 259.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.74 : 452.38 = 187.94 : x
  2. Step 2: Convert to fraction form
    327.74/452.38 = 187.94/x
  3. Step 3: Cross multiply
    327.74x = 452.38 × 187.94
  4. Step 4: Simplify right side
    327.74x = 85,020.30
  5. Step 5: Solve for x
    x = 85,020.30/327.74
  6. Step 6: Final answer
    x = 259.41

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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.