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Finding the Fourth Proportional to 300,309.45, 450,251.52 and 150,442.83

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Solution

The fourth proportional to 300,309.45, 450,251.52 and 150,442.83 is: 225,557.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,309.45 : 450,251.52 = 150,442.83 : x
  2. Step 2: Convert to fraction form
    300,309.45/450,251.52 = 150,442.83/x
  3. Step 3: Cross multiply
    300,309.45x = 450,251.52 × 150,442.83
  4. Step 4: Simplify right side
    300,309.45x = 67,737,112,880.60
  5. Step 5: Solve for x
    x = 67,737,112,880.60/300,309.45
  6. Step 6: Final answer
    x = 225,557.71

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1.5x scale

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.