Home / 259,724.54-389,826.30-131,730.66

Finding the Fourth Proportional to 259,724.54, 389,826.30 and 131,730.66

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Solution

The fourth proportional to 259,724.54, 389,826.30 and 131,730.66 is: 197,717.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,724.54 : 389,826.30 = 131,730.66 : x
  2. Step 2: Convert to fraction form
    259,724.54/389,826.30 = 131,730.66/x
  3. Step 3: Cross multiply
    259,724.54x = 389,826.30 × 131,730.66
  4. Step 4: Simplify right side
    259,724.54x = 51,352,073,176.57
  5. Step 5: Solve for x
    x = 51,352,073,176.57/259,724.54
  6. Step 6: Final answer
    x = 197,717.45

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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.