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Finding the Fourth Proportional to 300,766.80, 451,247.40 and 201,039.60

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Solution

The fourth proportional to 300,766.80, 451,247.40 and 201,039.60 is: 301,624.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,766.80 : 451,247.40 = 201,039.60 : x
  2. Step 2: Convert to fraction form
    300,766.80/451,247.40 = 201,039.60/x
  3. Step 3: Cross multiply
    300,766.80x = 451,247.40 × 201,039.60
  4. Step 4: Simplify right side
    300,766.80x = 90,718,596,797.04
  5. Step 5: Solve for x
    x = 90,718,596,797.04/300,766.80
  6. Step 6: Final answer
    x = 301,624.37

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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.