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Finding the Fourth Proportional to 297.22, 409.98 and 227.56

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Solution

The fourth proportional to 297.22, 409.98 and 227.56 is: 313.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.22 : 409.98 = 227.56 : x
  2. Step 2: Convert to fraction form
    297.22/409.98 = 227.56/x
  3. Step 3: Cross multiply
    297.22x = 409.98 × 227.56
  4. Step 4: Simplify right side
    297.22x = 93,295.05
  5. Step 5: Solve for x
    x = 93,295.05/297.22
  6. Step 6: Final answer
    x = 313.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.