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Finding the Fourth Proportional to 388,550.54, 582,858.61 and 108,067.79

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Solution

The fourth proportional to 388,550.54, 582,858.61 and 108,067.79 is: 162,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,550.54 : 582,858.61 = 108,067.79 : x
  2. Step 2: Convert to fraction form
    388,550.54/582,858.61 = 108,067.79/x
  3. Step 3: Cross multiply
    388,550.54x = 582,858.61 × 108,067.79
  4. Step 4: Simplify right side
    388,550.54x = 62,988,243,052.15
  5. Step 5: Solve for x
    x = 62,988,243,052.15/388,550.54
  6. Step 6: Final answer
    x = 162,110.81

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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.