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Finding the Fourth Proportional to 300.65, 450.58 and 222.99

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Solution

The fourth proportional to 300.65, 450.58 and 222.99 is: 334.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.65 : 450.58 = 222.99 : x
  2. Step 2: Convert to fraction form
    300.65/450.58 = 222.99/x
  3. Step 3: Cross multiply
    300.65x = 450.58 × 222.99
  4. Step 4: Simplify right side
    300.65x = 100,474.28
  5. Step 5: Solve for x
    x = 100,474.28/300.65
  6. Step 6: Final answer
    x = 334.19

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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.