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Finding the Fourth Proportional to 205,629, 308,449.56 and 55,868.48

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Solution

The fourth proportional to 205,629, 308,449.56 and 55,868.48 is: 83,804.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,629 : 308,449.56 = 55,868.48 : x
  2. Step 2: Convert to fraction form
    205,629/308,449.56 = 55,868.48/x
  3. Step 3: Cross multiply
    205,629x = 308,449.56 × 55,868.48
  4. Step 4: Simplify right side
    205,629x = 17,232,608,073.87
  5. Step 5: Solve for x
    x = 17,232,608,073.87/205,629
  6. Step 6: Final answer
    x = 83,804.37

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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.