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Finding the Fourth Proportional to 194.10, 265.49 and 191.22

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Solution

The fourth proportional to 194.10, 265.49 and 191.22 is: 261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.10 : 265.49 = 191.22 : x
  2. Step 2: Convert to fraction form
    194.10/265.49 = 191.22/x
  3. Step 3: Cross multiply
    194.10x = 265.49 × 191.22
  4. Step 4: Simplify right side
    194.10x = 50,766.04
  5. Step 5: Solve for x
    x = 50,766.04/194.10
  6. Step 6: Final answer
    x = 261.55

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.