Home / 258,724.25-356,997.12-149,789.78

Finding the Fourth Proportional to 258,724.25, 356,997.12 and 149,789.78

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Solution

The fourth proportional to 258,724.25, 356,997.12 and 149,789.78 is: 206,685.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,724.25 : 356,997.12 = 149,789.78 : x
  2. Step 2: Convert to fraction form
    258,724.25/356,997.12 = 149,789.78/x
  3. Step 3: Cross multiply
    258,724.25x = 356,997.12 × 149,789.78
  4. Step 4: Simplify right side
    258,724.25x = 53,474,518,280.45
  5. Step 5: Solve for x
    x = 53,474,518,280.45/258,724.25
  6. Step 6: Final answer
    x = 206,685.38

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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.