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Finding the Fourth Proportional to 268.11, 370.10 and 194.74

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Solution

The fourth proportional to 268.11, 370.10 and 194.74 is: 268.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.11 : 370.10 = 194.74 : x
  2. Step 2: Convert to fraction form
    268.11/370.10 = 194.74/x
  3. Step 3: Cross multiply
    268.11x = 370.10 × 194.74
  4. Step 4: Simplify right side
    268.11x = 72,072.84
  5. Step 5: Solve for x
    x = 72,072.84/268.11
  6. Step 6: Final answer
    x = 268.82

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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.