Home / 258,976.74-388,822.86-178,826.61

Finding the Fourth Proportional to 258,976.74, 388,822.86 and 178,826.61

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Solution

The fourth proportional to 258,976.74, 388,822.86 and 178,826.61 is: 268,486.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,976.74 : 388,822.86 = 178,826.61 : x
  2. Step 2: Convert to fraction form
    258,976.74/388,822.86 = 178,826.61/x
  3. Step 3: Cross multiply
    258,976.74x = 388,822.86 × 178,826.61
  4. Step 4: Simplify right side
    258,976.74x = 69,531,873,944.30
  5. Step 5: Solve for x
    x = 69,531,873,944.30/258,976.74
  6. Step 6: Final answer
    x = 268,486.95

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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.