Home / 258,321.20-356,481.32-143,610.30

Finding the Fourth Proportional to 258,321.20, 356,481.32 and 143,610.30

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Solution

The fourth proportional to 258,321.20, 356,481.32 and 143,610.30 is: 198,181.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,321.20 : 356,481.32 = 143,610.30 : x
  2. Step 2: Convert to fraction form
    258,321.20/356,481.32 = 143,610.30/x
  3. Step 3: Cross multiply
    258,321.20x = 356,481.32 × 143,610.30
  4. Step 4: Simplify right side
    258,321.20x = 51,194,388,591.54
  5. Step 5: Solve for x
    x = 51,194,388,591.54/258,321.20
  6. Step 6: Final answer
    x = 198,181.14

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1.5x scale

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.