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Finding the Fourth Proportional to 235.74, 351.36 and 233.68

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Solution

The fourth proportional to 235.74, 351.36 and 233.68 is: 348.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.74 : 351.36 = 233.68 : x
  2. Step 2: Convert to fraction form
    235.74/351.36 = 233.68/x
  3. Step 3: Cross multiply
    235.74x = 351.36 × 233.68
  4. Step 4: Simplify right side
    235.74x = 82,105.80
  5. Step 5: Solve for x
    x = 82,105.80/235.74
  6. Step 6: Final answer
    x = 348.29

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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.