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Finding the Fourth Proportional to 366,912.30, 550,368.45 and 323,609.70

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Solution

The fourth proportional to 366,912.30, 550,368.45 and 323,609.70 is: 485,414.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,912.30 : 550,368.45 = 323,609.70 : x
  2. Step 2: Convert to fraction form
    366,912.30/550,368.45 = 323,609.70/x
  3. Step 3: Cross multiply
    366,912.30x = 550,368.45 × 323,609.70
  4. Step 4: Simplify right side
    366,912.30x = 178,104,568,993.97
  5. Step 5: Solve for x
    x = 178,104,568,993.97/366,912.30
  6. Step 6: Final answer
    x = 485,414.55

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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.