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Finding the Fourth Proportional to 188.01, 282.09 and 163.66

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Solution

The fourth proportional to 188.01, 282.09 and 163.66 is: 245.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.01 : 282.09 = 163.66 : x
  2. Step 2: Convert to fraction form
    188.01/282.09 = 163.66/x
  3. Step 3: Cross multiply
    188.01x = 282.09 × 163.66
  4. Step 4: Simplify right side
    188.01x = 46,166.85
  5. Step 5: Solve for x
    x = 46,166.85/188.01
  6. Step 6: Final answer
    x = 245.56

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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.