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Finding the Fourth Proportional to 190.27, 262.58 and 107.38

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Solution

The fourth proportional to 190.27, 262.58 and 107.38 is: 148.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.27 : 262.58 = 107.38 : x
  2. Step 2: Convert to fraction form
    190.27/262.58 = 107.38/x
  3. Step 3: Cross multiply
    190.27x = 262.58 × 107.38
  4. Step 4: Simplify right side
    190.27x = 28,195.54
  5. Step 5: Solve for x
    x = 28,195.54/190.27
  6. Step 6: Final answer
    x = 148.19

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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.