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Finding the Fourth Proportional to 189.89, 262.02 and 119.04

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Solution

The fourth proportional to 189.89, 262.02 and 119.04 is: 164.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    189.89 : 262.02 = 119.04 : x
  2. Step 2: Convert to fraction form
    189.89/262.02 = 119.04/x
  3. Step 3: Cross multiply
    189.89x = 262.02 × 119.04
  4. Step 4: Simplify right side
    189.89x = 31,190.86
  5. Step 5: Solve for x
    x = 31,190.86/189.89
  6. Step 6: Final answer
    x = 164.26

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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.