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Finding the Fourth Proportional to 235, 351.36 and 229.53

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Solution

The fourth proportional to 235, 351.36 and 229.53 is: 343.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    235 : 351.36 = 229.53 : x
  2. Step 2: Convert to fraction form
    235/351.36 = 229.53/x
  3. Step 3: Cross multiply
    235x = 351.36 × 229.53
  4. Step 4: Simplify right side
    235x = 80,647.66
  5. Step 5: Solve for x
    x = 80,647.66/235
  6. Step 6: Final answer
    x = 343.18

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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.