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Finding the Fourth Proportional to 548.18, 756.26 and 327.06

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Solution

The fourth proportional to 548.18, 756.26 and 327.06 is: 451.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.18 : 756.26 = 327.06 : x
  2. Step 2: Convert to fraction form
    548.18/756.26 = 327.06/x
  3. Step 3: Cross multiply
    548.18x = 756.26 × 327.06
  4. Step 4: Simplify right side
    548.18x = 247,342.40
  5. Step 5: Solve for x
    x = 247,342.40/548.18
  6. Step 6: Final answer
    x = 451.21

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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.