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Finding the Fourth Proportional to 234.57, 322.61 and 205.41

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Solution

The fourth proportional to 234.57, 322.61 and 205.41 is: 282.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.57 : 322.61 = 205.41 : x
  2. Step 2: Convert to fraction form
    234.57/322.61 = 205.41/x
  3. Step 3: Cross multiply
    234.57x = 322.61 × 205.41
  4. Step 4: Simplify right side
    234.57x = 66,266.29
  5. Step 5: Solve for x
    x = 66,266.29/234.57
  6. Step 6: Final answer
    x = 282.50

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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.