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Finding the Fourth Proportional to 548.05, 756.33 and 327.05

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Solution

The fourth proportional to 548.05, 756.33 and 327.05 is: 451.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.05 : 756.33 = 327.05 : x
  2. Step 2: Convert to fraction form
    548.05/756.33 = 327.05/x
  3. Step 3: Cross multiply
    548.05x = 756.33 × 327.05
  4. Step 4: Simplify right side
    548.05x = 247,357.73
  5. Step 5: Solve for x
    x = 247,357.73/548.05
  6. Step 6: Final answer
    x = 451.34

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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.