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Finding the Fourth Proportional to 397.37, 547.94 and 326.36

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Solution

The fourth proportional to 397.37, 547.94 and 326.36 is: 450.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.37 : 547.94 = 326.36 : x
  2. Step 2: Convert to fraction form
    397.37/547.94 = 326.36/x
  3. Step 3: Cross multiply
    397.37x = 547.94 × 326.36
  4. Step 4: Simplify right side
    397.37x = 178,821.33
  5. Step 5: Solve for x
    x = 178,821.33/397.37
  6. Step 6: Final answer
    x = 450.02

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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.