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Finding the Fourth Proportional to 189.94, 286.60 and 182.44

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Solution

The fourth proportional to 189.94, 286.60 and 182.44 is: 275.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    189.94 : 286.60 = 182.44 : x
  2. Step 2: Convert to fraction form
    189.94/286.60 = 182.44/x
  3. Step 3: Cross multiply
    189.94x = 286.60 × 182.44
  4. Step 4: Simplify right side
    189.94x = 52,287.30
  5. Step 5: Solve for x
    x = 52,287.30/189.94
  6. Step 6: Final answer
    x = 275.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.