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Finding the Fourth Proportional to 483,993.60, 726,249.60 and 203,539.20

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Solution

The fourth proportional to 483,993.60, 726,249.60 and 203,539.20 is: 305,417.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,993.60 : 726,249.60 = 203,539.20 : x
  2. Step 2: Convert to fraction form
    483,993.60/726,249.60 = 203,539.20/x
  3. Step 3: Cross multiply
    483,993.60x = 726,249.60 × 203,539.20
  4. Step 4: Simplify right side
    483,993.60x = 147,820,262,584.32
  5. Step 5: Solve for x
    x = 147,820,262,584.32/483,993.60
  6. Step 6: Final answer
    x = 305,417.80

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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.