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Finding the Fourth Proportional to 235.10, 351.93 and 229.70

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Solution

The fourth proportional to 235.10, 351.93 and 229.70 is: 343.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.10 : 351.93 = 229.70 : x
  2. Step 2: Convert to fraction form
    235.10/351.93 = 229.70/x
  3. Step 3: Cross multiply
    235.10x = 351.93 × 229.70
  4. Step 4: Simplify right side
    235.10x = 80,838.32
  5. Step 5: Solve for x
    x = 80,838.32/235.10
  6. Step 6: Final answer
    x = 343.85

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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.