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Finding the Fourth Proportional to 548.88, 757.32 and 327.90

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Solution

The fourth proportional to 548.88, 757.32 and 327.90 is: 452.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.88 : 757.32 = 327.90 : x
  2. Step 2: Convert to fraction form
    548.88/757.32 = 327.90/x
  3. Step 3: Cross multiply
    548.88x = 757.32 × 327.90
  4. Step 4: Simplify right side
    548.88x = 248,325.23
  5. Step 5: Solve for x
    x = 248,325.23/548.88
  6. Step 6: Final answer
    x = 452.42

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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.