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Finding the Fourth Proportional to 190.10, 262.88 and 181.95

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Solution

The fourth proportional to 190.10, 262.88 and 181.95 is: 251.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.10 : 262.88 = 181.95 : x
  2. Step 2: Convert to fraction form
    190.10/262.88 = 181.95/x
  3. Step 3: Cross multiply
    190.10x = 262.88 × 181.95
  4. Step 4: Simplify right side
    190.10x = 47,831.02
  5. Step 5: Solve for x
    x = 47,831.02/190.10
  6. Step 6: Final answer
    x = 251.61

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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.