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Finding the Fourth Proportional to 300,917.40, 451,551.06 and 123,551.70

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Solution

The fourth proportional to 300,917.40, 451,551.06 and 123,551.70 is: 185,399.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,917.40 : 451,551.06 = 123,551.70 : x
  2. Step 2: Convert to fraction form
    300,917.40/451,551.06 = 123,551.70/x
  3. Step 3: Cross multiply
    300,917.40x = 451,551.06 × 123,551.70
  4. Step 4: Simplify right side
    300,917.40x = 55,789,901,099.80
  5. Step 5: Solve for x
    x = 55,789,901,099.80/300,917.40
  6. Step 6: Final answer
    x = 185,399.39

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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.