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Finding the Fourth Proportional to 188.08, 282.55 and 133.37

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Solution

The fourth proportional to 188.08, 282.55 and 133.37 is: 200.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.08 : 282.55 = 133.37 : x
  2. Step 2: Convert to fraction form
    188.08/282.55 = 133.37/x
  3. Step 3: Cross multiply
    188.08x = 282.55 × 133.37
  4. Step 4: Simplify right side
    188.08x = 37,684.88
  5. Step 5: Solve for x
    x = 37,684.88/188.08
  6. Step 6: Final answer
    x = 200.37

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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.