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Finding the Fourth Proportional to 362,408.20, 543,612.30 and 303,796.60

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Solution

The fourth proportional to 362,408.20, 543,612.30 and 303,796.60 is: 455,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,408.20 : 543,612.30 = 303,796.60 : x
  2. Step 2: Convert to fraction form
    362,408.20/543,612.30 = 303,796.60/x
  3. Step 3: Cross multiply
    362,408.20x = 543,612.30 × 303,796.60
  4. Step 4: Simplify right side
    362,408.20x = 165,147,568,458.18
  5. Step 5: Solve for x
    x = 165,147,568,458.18/362,408.20
  6. Step 6: Final answer
    x = 455,694.90

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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.