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Finding the Fourth Proportional to 227.57, 341.71 and 136.67

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Solution

The fourth proportional to 227.57, 341.71 and 136.67 is: 205.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.57 : 341.71 = 136.67 : x
  2. Step 2: Convert to fraction form
    227.57/341.71 = 136.67/x
  3. Step 3: Cross multiply
    227.57x = 341.71 × 136.67
  4. Step 4: Simplify right side
    227.57x = 46,700.82
  5. Step 5: Solve for x
    x = 46,700.82/227.57
  6. Step 6: Final answer
    x = 205.22

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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.