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Finding the Fourth Proportional to 244.09, 336.68 and 161.22

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Solution

The fourth proportional to 244.09, 336.68 and 161.22 is: 222.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.09 : 336.68 = 161.22 : x
  2. Step 2: Convert to fraction form
    244.09/336.68 = 161.22/x
  3. Step 3: Cross multiply
    244.09x = 336.68 × 161.22
  4. Step 4: Simplify right side
    244.09x = 54,279.55
  5. Step 5: Solve for x
    x = 54,279.55/244.09
  6. Step 6: Final answer
    x = 222.38

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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.