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Finding the Fourth Proportional to 300,122.83, 449,768.71 and 150,172.39

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Solution

The fourth proportional to 300,122.83, 449,768.71 and 150,172.39 is: 225,050.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,122.83 : 449,768.71 = 150,172.39 : x
  2. Step 2: Convert to fraction form
    300,122.83/449,768.71 = 150,172.39/x
  3. Step 3: Cross multiply
    300,122.83x = 449,768.71 × 150,172.39
  4. Step 4: Simplify right side
    300,122.83x = 67,542,842,127.92
  5. Step 5: Solve for x
    x = 67,542,842,127.92/300,122.83
  6. Step 6: Final answer
    x = 225,050.66

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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.