Home / 245,757.44-339,077.40-138,321.20

Finding the Fourth Proportional to 245,757.44, 339,077.40 and 138,321.20

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Solution

The fourth proportional to 245,757.44, 339,077.40 and 138,321.20 is: 190,845.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,757.44 : 339,077.40 = 138,321.20 : x
  2. Step 2: Convert to fraction form
    245,757.44/339,077.40 = 138,321.20/x
  3. Step 3: Cross multiply
    245,757.44x = 339,077.40 × 138,321.20
  4. Step 4: Simplify right side
    245,757.44x = 46,901,592,860.88
  5. Step 5: Solve for x
    x = 46,901,592,860.88/245,757.44
  6. Step 6: Final answer
    x = 190,845.06

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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.