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Finding the Fourth Proportional to 227.92, 341.64 and 90.84

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Solution

The fourth proportional to 227.92, 341.64 and 90.84 is: 136.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.92 : 341.64 = 90.84 : x
  2. Step 2: Convert to fraction form
    227.92/341.64 = 90.84/x
  3. Step 3: Cross multiply
    227.92x = 341.64 × 90.84
  4. Step 4: Simplify right side
    227.92x = 31,034.58
  5. Step 5: Solve for x
    x = 31,034.58/227.92
  6. Step 6: Final answer
    x = 136.16

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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.