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Finding the Fourth Proportional to 274,450.80, 410,869.80 and 204,639.60

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Solution

The fourth proportional to 274,450.80, 410,869.80 and 204,639.60 is: 306,358.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,450.80 : 410,869.80 = 204,639.60 : x
  2. Step 2: Convert to fraction form
    274,450.80/410,869.80 = 204,639.60/x
  3. Step 3: Cross multiply
    274,450.80x = 410,869.80 × 204,639.60
  4. Step 4: Simplify right side
    274,450.80x = 84,080,231,524.08
  5. Step 5: Solve for x
    x = 84,080,231,524.08/274,450.80
  6. Step 6: Final answer
    x = 306,358.12

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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.