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Finding the Fourth Proportional to 300.19, 449.17 and 234.99

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Solution

The fourth proportional to 300.19, 449.17 and 234.99 is: 351.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.19 : 449.17 = 234.99 : x
  2. Step 2: Convert to fraction form
    300.19/449.17 = 234.99/x
  3. Step 3: Cross multiply
    300.19x = 449.17 × 234.99
  4. Step 4: Simplify right side
    300.19x = 105,550.46
  5. Step 5: Solve for x
    x = 105,550.46/300.19
  6. Step 6: Final answer
    x = 351.61

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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.