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Finding the Fourth Proportional to 327.42, 451.36 and 228.87

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Solution

The fourth proportional to 327.42, 451.36 and 228.87 is: 315.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.42 : 451.36 = 228.87 : x
  2. Step 2: Convert to fraction form
    327.42/451.36 = 228.87/x
  3. Step 3: Cross multiply
    327.42x = 451.36 × 228.87
  4. Step 4: Simplify right side
    327.42x = 103,299.36
  5. Step 5: Solve for x
    x = 103,299.36/327.42
  6. Step 6: Final answer
    x = 315.50

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