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Finding the Fourth Proportional to 190.26, 284.92 and 132.40

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Solution

The fourth proportional to 190.26, 284.92 and 132.40 is: 198.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.26 : 284.92 = 132.40 : x
  2. Step 2: Convert to fraction form
    190.26/284.92 = 132.40/x
  3. Step 3: Cross multiply
    190.26x = 284.92 × 132.40
  4. Step 4: Simplify right side
    190.26x = 37,723.41
  5. Step 5: Solve for x
    x = 37,723.41/190.26
  6. Step 6: Final answer
    x = 198.27

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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.