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Finding the Fourth Proportional to 188.49, 283.19 and 178.13

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Solution

The fourth proportional to 188.49, 283.19 and 178.13 is: 267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.49 : 283.19 = 178.13 : x
  2. Step 2: Convert to fraction form
    188.49/283.19 = 178.13/x
  3. Step 3: Cross multiply
    188.49x = 283.19 × 178.13
  4. Step 4: Simplify right side
    188.49x = 50,442.33
  5. Step 5: Solve for x
    x = 50,442.33/188.49
  6. Step 6: Final answer
    x = 267.61

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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.