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Finding the Fourth Proportional to 144.41, 199.08 and 122.37

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Solution

The fourth proportional to 144.41, 199.08 and 122.37 is: 168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.41 : 199.08 = 122.37 : x
  2. Step 2: Convert to fraction form
    144.41/199.08 = 122.37/x
  3. Step 3: Cross multiply
    144.41x = 199.08 × 122.37
  4. Step 4: Simplify right side
    144.41x = 24,361.42
  5. Step 5: Solve for x
    x = 24,361.42/144.41
  6. Step 6: Final answer
    x = 168.70

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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.