Home / 287,519.37-396,778.35-166,732.37

Finding the Fourth Proportional to 287,519.37, 396,778.35 and 166,732.37

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Solution

The fourth proportional to 287,519.37, 396,778.35 and 166,732.37 is: 230,091.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,519.37 : 396,778.35 = 166,732.37 : x
  2. Step 2: Convert to fraction form
    287,519.37/396,778.35 = 166,732.37/x
  3. Step 3: Cross multiply
    287,519.37x = 396,778.35 × 166,732.37
  4. Step 4: Simplify right side
    287,519.37x = 66,155,796,083.47
  5. Step 5: Solve for x
    x = 66,155,796,083.47/287,519.37
  6. Step 6: Final answer
    x = 230,091.61

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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.