Home / 300,919.26-451,327.05-90,500.70

Finding the Fourth Proportional to 300,919.26, 451,327.05 and 90,500.70

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Solution

The fourth proportional to 300,919.26, 451,327.05 and 90,500.70 is: 135,735.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,919.26 : 451,327.05 = 90,500.70 : x
  2. Step 2: Convert to fraction form
    300,919.26/451,327.05 = 90,500.70/x
  3. Step 3: Cross multiply
    300,919.26x = 451,327.05 × 90,500.70
  4. Step 4: Simplify right side
    300,919.26x = 40,845,413,953.94
  5. Step 5: Solve for x
    x = 40,845,413,953.94/300,919.26
  6. Step 6: Final answer
    x = 135,735.46

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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.