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Finding the Fourth Proportional to 327.67, 452.16 and 187.76

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Solution

The fourth proportional to 327.67, 452.16 and 187.76 is: 259.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.67 : 452.16 = 187.76 : x
  2. Step 2: Convert to fraction form
    327.67/452.16 = 187.76/x
  3. Step 3: Cross multiply
    327.67x = 452.16 × 187.76
  4. Step 4: Simplify right side
    327.67x = 84,895.77
  5. Step 5: Solve for x
    x = 84,895.77/327.67
  6. Step 6: Final answer
    x = 259.09

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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.