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Finding the Fourth Proportional to 294.35, 406.22 and 163.35

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Solution

The fourth proportional to 294.35, 406.22 and 163.35 is: 225.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.35 : 406.22 = 163.35 : x
  2. Step 2: Convert to fraction form
    294.35/406.22 = 163.35/x
  3. Step 3: Cross multiply
    294.35x = 406.22 × 163.35
  4. Step 4: Simplify right side
    294.35x = 66,355.22
  5. Step 5: Solve for x
    x = 66,355.22/294.35
  6. Step 6: Final answer
    x = 225.43

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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.