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Finding the Fourth Proportional to 226.45, 341.26 and 215.47

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Solution

The fourth proportional to 226.45, 341.26 and 215.47 is: 324.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.45 : 341.26 = 215.47 : x
  2. Step 2: Convert to fraction form
    226.45/341.26 = 215.47/x
  3. Step 3: Cross multiply
    226.45x = 341.26 × 215.47
  4. Step 4: Simplify right side
    226.45x = 73,531.29
  5. Step 5: Solve for x
    x = 73,531.29/226.45
  6. Step 6: Final answer
    x = 324.71

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.