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Finding the Fourth Proportional to 204,866.94, 307,283.97 and 69,919.47

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Solution

The fourth proportional to 204,866.94, 307,283.97 and 69,919.47 is: 104,873.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,866.94 : 307,283.97 = 69,919.47 : x
  2. Step 2: Convert to fraction form
    204,866.94/307,283.97 = 69,919.47/x
  3. Step 3: Cross multiply
    204,866.94x = 307,283.97 × 69,919.47
  4. Step 4: Simplify right side
    204,866.94x = 21,485,132,321.90
  5. Step 5: Solve for x
    x = 21,485,132,321.90/204,866.94
  6. Step 6: Final answer
    x = 104,873.59

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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.