Home / 245,979.27-339,453.27-138,539.25

Finding the Fourth Proportional to 245,979.27, 339,453.27 and 138,539.25

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Solution

The fourth proportional to 245,979.27, 339,453.27 and 138,539.25 is: 191,185.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,979.27 : 339,453.27 = 138,539.25 : x
  2. Step 2: Convert to fraction form
    245,979.27/339,453.27 = 138,539.25/x
  3. Step 3: Cross multiply
    245,979.27x = 339,453.27 × 138,539.25
  4. Step 4: Simplify right side
    245,979.27x = 47,027,601,435.85
  5. Step 5: Solve for x
    x = 47,027,601,435.85/245,979.27
  6. Step 6: Final answer
    x = 191,185.22

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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.