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Finding the Fourth Proportional to 286,879, 395,893.02 and 167,647

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Solution

The fourth proportional to 286,879, 395,893.02 and 167,647 is: 231,352.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,879 : 395,893.02 = 167,647 : x
  2. Step 2: Convert to fraction form
    286,879/395,893.02 = 167,647/x
  3. Step 3: Cross multiply
    286,879x = 395,893.02 × 167,647
  4. Step 4: Simplify right side
    286,879x = 66,370,277,123.94
  5. Step 5: Solve for x
    x = 66,370,277,123.94/286,879
  6. Step 6: Final answer
    x = 231,352.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.