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Finding the Fourth Proportional to 235.23, 350.84 and 213.36

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Solution

The fourth proportional to 235.23, 350.84 and 213.36 is: 318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.23 : 350.84 = 213.36 : x
  2. Step 2: Convert to fraction form
    235.23/350.84 = 213.36/x
  3. Step 3: Cross multiply
    235.23x = 350.84 × 213.36
  4. Step 4: Simplify right side
    235.23x = 74,855.22
  5. Step 5: Solve for x
    x = 74,855.22/235.23
  6. Step 6: Final answer
    x = 318.22

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Why These Related Problems?

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