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Finding the Fourth Proportional to 234.21, 350.57 and 190.51

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Solution

The fourth proportional to 234.21, 350.57 and 190.51 is: 285.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.21 : 350.57 = 190.51 : x
  2. Step 2: Convert to fraction form
    234.21/350.57 = 190.51/x
  3. Step 3: Cross multiply
    234.21x = 350.57 × 190.51
  4. Step 4: Simplify right side
    234.21x = 66,786.69
  5. Step 5: Solve for x
    x = 66,786.69/234.21
  6. Step 6: Final answer
    x = 285.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.