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Finding the Fourth Proportional to 190.82, 286.24 and 181.10

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Solution

The fourth proportional to 190.82, 286.24 and 181.10 is: 271.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.82 : 286.24 = 181.10 : x
  2. Step 2: Convert to fraction form
    190.82/286.24 = 181.10/x
  3. Step 3: Cross multiply
    190.82x = 286.24 × 181.10
  4. Step 4: Simplify right side
    190.82x = 51,838.06
  5. Step 5: Solve for x
    x = 51,838.06/190.82
  6. Step 6: Final answer
    x = 271.66

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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.