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Finding the Fourth Proportional to 234.12, 322.88 and 201.36

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Solution

The fourth proportional to 234.12, 322.88 and 201.36 is: 277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.12 : 322.88 = 201.36 : x
  2. Step 2: Convert to fraction form
    234.12/322.88 = 201.36/x
  3. Step 3: Cross multiply
    234.12x = 322.88 × 201.36
  4. Step 4: Simplify right side
    234.12x = 65,014.11
  5. Step 5: Solve for x
    x = 65,014.11/234.12
  6. Step 6: Final answer
    x = 277.70

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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.