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Finding the Fourth Proportional to 300.22, 450.48 and 154

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Solution

The fourth proportional to 300.22, 450.48 and 154 is: 231.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.22 : 450.48 = 154 : x
  2. Step 2: Convert to fraction form
    300.22/450.48 = 154/x
  3. Step 3: Cross multiply
    300.22x = 450.48 × 154
  4. Step 4: Simplify right side
    300.22x = 69,373.92
  5. Step 5: Solve for x
    x = 69,373.92/300.22
  6. Step 6: Final answer
    x = 231.08

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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.