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Finding the Fourth Proportional to 188.28, 282.45 and 60

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Solution

The fourth proportional to 188.28, 282.45 and 60 is: 90.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.28 : 282.45 = 60 : x
  2. Step 2: Convert to fraction form
    188.28/282.45 = 60/x
  3. Step 3: Cross multiply
    188.28x = 282.45 × 60
  4. Step 4: Simplify right side
    188.28x = 16,947
  5. Step 5: Solve for x
    x = 16,947/188.28
  6. Step 6: Final answer
    x = 90.01

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.