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Finding the Fourth Proportional to 226.04, 336.74 and 212.09

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Solution

The fourth proportional to 226.04, 336.74 and 212.09 is: 315.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.04 : 336.74 = 212.09 : x
  2. Step 2: Convert to fraction form
    226.04/336.74 = 212.09/x
  3. Step 3: Cross multiply
    226.04x = 336.74 × 212.09
  4. Step 4: Simplify right side
    226.04x = 71,416.44
  5. Step 5: Solve for x
    x = 71,416.44/226.04
  6. Step 6: Final answer
    x = 315.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.