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Finding the Fourth Proportional to 394.85, 592.37 and 163.66

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Solution

The fourth proportional to 394.85, 592.37 and 163.66 is: 245.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.85 : 592.37 = 163.66 : x
  2. Step 2: Convert to fraction form
    394.85/592.37 = 163.66/x
  3. Step 3: Cross multiply
    394.85x = 592.37 × 163.66
  4. Step 4: Simplify right side
    394.85x = 96,946.20
  5. Step 5: Solve for x
    x = 96,946.20/394.85
  6. Step 6: Final answer
    x = 245.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.