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Finding the Fourth Proportional to 300,121.62, 450,016.25 and 122,753.19

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Solution

The fourth proportional to 300,121.62, 450,016.25 and 122,753.19 is: 184,061.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,121.62 : 450,016.25 = 122,753.19 : x
  2. Step 2: Convert to fraction form
    300,121.62/450,016.25 = 122,753.19/x
  3. Step 3: Cross multiply
    300,121.62x = 450,016.25 × 122,753.19
  4. Step 4: Simplify right side
    300,121.62x = 55,240,929,625.57
  5. Step 5: Solve for x
    x = 55,240,929,625.57/300,121.62
  6. Step 6: Final answer
    x = 184,061.81

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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.