Home / 238,979.87-329,801.63-131,559.90

Finding the Fourth Proportional to 238,979.87, 329,801.63 and 131,559.90

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Solution

The fourth proportional to 238,979.87, 329,801.63 and 131,559.90 is: 181,557.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,979.87 : 329,801.63 = 131,559.90 : x
  2. Step 2: Convert to fraction form
    238,979.87/329,801.63 = 131,559.90/x
  3. Step 3: Cross multiply
    238,979.87x = 329,801.63 × 131,559.90
  4. Step 4: Simplify right side
    238,979.87x = 43,388,667,568.08
  5. Step 5: Solve for x
    x = 43,388,667,568.08/238,979.87
  6. Step 6: Final answer
    x = 181,557.83

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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.