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Finding the Fourth Proportional to 366.48, 506.79 and 327.78

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Solution

The fourth proportional to 366.48, 506.79 and 327.78 is: 453.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.48 : 506.79 = 327.78 : x
  2. Step 2: Convert to fraction form
    366.48/506.79 = 327.78/x
  3. Step 3: Cross multiply
    366.48x = 506.79 × 327.78
  4. Step 4: Simplify right side
    366.48x = 166,115.63
  5. Step 5: Solve for x
    x = 166,115.63/366.48
  6. Step 6: Final answer
    x = 453.27

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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.