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Finding the Fourth Proportional to 262.27, 394.01 and 190.59

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Solution

The fourth proportional to 262.27, 394.01 and 190.59 is: 286.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.27 : 394.01 = 190.59 : x
  2. Step 2: Convert to fraction form
    262.27/394.01 = 190.59/x
  3. Step 3: Cross multiply
    262.27x = 394.01 × 190.59
  4. Step 4: Simplify right side
    262.27x = 75,094.37
  5. Step 5: Solve for x
    x = 75,094.37/262.27
  6. Step 6: Final answer
    x = 286.32

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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.