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Finding the Fourth Proportional to 226.77, 338.73 and 214.89

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Solution

The fourth proportional to 226.77, 338.73 and 214.89 is: 320.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.77 : 338.73 = 214.89 : x
  2. Step 2: Convert to fraction form
    226.77/338.73 = 214.89/x
  3. Step 3: Cross multiply
    226.77x = 338.73 × 214.89
  4. Step 4: Simplify right side
    226.77x = 72,790.50
  5. Step 5: Solve for x
    x = 72,790.50/226.77
  6. Step 6: Final answer
    x = 320.99

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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.