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Finding the Fourth Proportional to 190.97, 263.54 and 108.08

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Solution

The fourth proportional to 190.97, 263.54 and 108.08 is: 149.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.97 : 263.54 = 108.08 : x
  2. Step 2: Convert to fraction form
    190.97/263.54 = 108.08/x
  3. Step 3: Cross multiply
    190.97x = 263.54 × 108.08
  4. Step 4: Simplify right side
    190.97x = 28,484.33
  5. Step 5: Solve for x
    x = 28,484.33/190.97
  6. Step 6: Final answer
    x = 149.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.