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Finding the Fourth Proportional to 234.21, 348.56 and 225.57

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Solution

The fourth proportional to 234.21, 348.56 and 225.57 is: 335.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.21 : 348.56 = 225.57 : x
  2. Step 2: Convert to fraction form
    234.21/348.56 = 225.57/x
  3. Step 3: Cross multiply
    234.21x = 348.56 × 225.57
  4. Step 4: Simplify right side
    234.21x = 78,623.55
  5. Step 5: Solve for x
    x = 78,623.55/234.21
  6. Step 6: Final answer
    x = 335.70

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