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Finding the Fourth Proportional to 406.73, 609.96 and 163.19

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Solution

The fourth proportional to 406.73, 609.96 and 163.19 is: 244.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.73 : 609.96 = 163.19 : x
  2. Step 2: Convert to fraction form
    406.73/609.96 = 163.19/x
  3. Step 3: Cross multiply
    406.73x = 609.96 × 163.19
  4. Step 4: Simplify right side
    406.73x = 99,539.37
  5. Step 5: Solve for x
    x = 99,539.37/406.73
  6. Step 6: Final answer
    x = 244.73

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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.