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Finding the Fourth Proportional to 188.73, 282.93 and 73.27

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Solution

The fourth proportional to 188.73, 282.93 and 73.27 is: 109.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.73 : 282.93 = 73.27 : x
  2. Step 2: Convert to fraction form
    188.73/282.93 = 73.27/x
  3. Step 3: Cross multiply
    188.73x = 282.93 × 73.27
  4. Step 4: Simplify right side
    188.73x = 20,730.36
  5. Step 5: Solve for x
    x = 20,730.36/188.73
  6. Step 6: Final answer
    x = 109.84

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Why These Related Problems?

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