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Finding the Fourth Proportional to 548.26, 756.31 and 371.33

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Solution

The fourth proportional to 548.26, 756.31 and 371.33 is: 512.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.26 : 756.31 = 371.33 : x
  2. Step 2: Convert to fraction form
    548.26/756.31 = 371.33/x
  3. Step 3: Cross multiply
    548.26x = 756.31 × 371.33
  4. Step 4: Simplify right side
    548.26x = 280,835.88
  5. Step 5: Solve for x
    x = 280,835.88/548.26
  6. Step 6: Final answer
    x = 512.23

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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.