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Finding the Fourth Proportional to 190.44, 262.58 and 135.14

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Solution

The fourth proportional to 190.44, 262.58 and 135.14 is: 186.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.44 : 262.58 = 135.14 : x
  2. Step 2: Convert to fraction form
    190.44/262.58 = 135.14/x
  3. Step 3: Cross multiply
    190.44x = 262.58 × 135.14
  4. Step 4: Simplify right side
    190.44x = 35,483.07
  5. Step 5: Solve for x
    x = 35,483.07/190.44
  6. Step 6: Final answer
    x = 186.32

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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.