Home / 256,067.31-384,101.07-87,589.27

Finding the Fourth Proportional to 256,067.31, 384,101.07 and 87,589.27

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Solution

The fourth proportional to 256,067.31, 384,101.07 and 87,589.27 is: 131,383.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,067.31 : 384,101.07 = 87,589.27 : x
  2. Step 2: Convert to fraction form
    256,067.31/384,101.07 = 87,589.27/x
  3. Step 3: Cross multiply
    256,067.31x = 384,101.07 × 87,589.27
  4. Step 4: Simplify right side
    256,067.31x = 33,643,132,327.52
  5. Step 5: Solve for x
    x = 33,643,132,327.52/256,067.31
  6. Step 6: Final answer
    x = 131,383.94

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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.