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Finding the Fourth Proportional to 235.18, 353.13 and 234.51

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Solution

The fourth proportional to 235.18, 353.13 and 234.51 is: 352.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.18 : 353.13 = 234.51 : x
  2. Step 2: Convert to fraction form
    235.18/353.13 = 234.51/x
  3. Step 3: Cross multiply
    235.18x = 353.13 × 234.51
  4. Step 4: Simplify right side
    235.18x = 82,812.52
  5. Step 5: Solve for x
    x = 82,812.52/235.18
  6. Step 6: Final answer
    x = 352.12

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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.