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Finding the Fourth Proportional to 189.36, 281.79 and 183.60

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Solution

The fourth proportional to 189.36, 281.79 and 183.60 is: 273.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    189.36 : 281.79 = 183.60 : x
  2. Step 2: Convert to fraction form
    189.36/281.79 = 183.60/x
  3. Step 3: Cross multiply
    189.36x = 281.79 × 183.60
  4. Step 4: Simplify right side
    189.36x = 51,736.64
  5. Step 5: Solve for x
    x = 51,736.64/189.36
  6. Step 6: Final answer
    x = 273.22

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.