Home / 239,268.78-330,189.15-131,836.26

Finding the Fourth Proportional to 239,268.78, 330,189.15 and 131,836.26

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Solution

The fourth proportional to 239,268.78, 330,189.15 and 131,836.26 is: 181,933.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,268.78 : 330,189.15 = 131,836.26 : x
  2. Step 2: Convert to fraction form
    239,268.78/330,189.15 = 131,836.26/x
  3. Step 3: Cross multiply
    239,268.78x = 330,189.15 × 131,836.26
  4. Step 4: Simplify right side
    239,268.78x = 43,530,902,628.58
  5. Step 5: Solve for x
    x = 43,530,902,628.58/239,268.78
  6. Step 6: Final answer
    x = 181,933.07

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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.