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Finding the Fourth Proportional to 300.01, 450.02 and 83.61

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Solution

The fourth proportional to 300.01, 450.02 and 83.61 is: 125.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.01 : 450.02 = 83.61 : x
  2. Step 2: Convert to fraction form
    300.01/450.02 = 83.61/x
  3. Step 3: Cross multiply
    300.01x = 450.02 × 83.61
  4. Step 4: Simplify right side
    300.01x = 37,626.17
  5. Step 5: Solve for x
    x = 37,626.17/300.01
  6. Step 6: Final answer
    x = 125.42

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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.