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Finding the Fourth Proportional to 326.78, 450.96 and 244.27

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Solution

The fourth proportional to 326.78, 450.96 and 244.27 is: 337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.78 : 450.96 = 244.27 : x
  2. Step 2: Convert to fraction form
    326.78/450.96 = 244.27/x
  3. Step 3: Cross multiply
    326.78x = 450.96 × 244.27
  4. Step 4: Simplify right side
    326.78x = 110,156.00
  5. Step 5: Solve for x
    x = 110,156.00/326.78
  6. Step 6: Final answer
    x = 337.10

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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.