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Finding the Fourth Proportional to 327.96, 452.55 and 188.11

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Solution

The fourth proportional to 327.96, 452.55 and 188.11 is: 259.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.96 : 452.55 = 188.11 : x
  2. Step 2: Convert to fraction form
    327.96/452.55 = 188.11/x
  3. Step 3: Cross multiply
    327.96x = 452.55 × 188.11
  4. Step 4: Simplify right side
    327.96x = 85,129.18
  5. Step 5: Solve for x
    x = 85,129.18/327.96
  6. Step 6: Final answer
    x = 259.57

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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.