Home / 259,815.24-389,747.70-72,826.20

Finding the Fourth Proportional to 259,815.24, 389,747.70 and 72,826.20

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Solution

The fourth proportional to 259,815.24, 389,747.70 and 72,826.20 is: 109,246.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,815.24 : 389,747.70 = 72,826.20 : x
  2. Step 2: Convert to fraction form
    259,815.24/389,747.70 = 72,826.20/x
  3. Step 3: Cross multiply
    259,815.24x = 389,747.70 × 72,826.20
  4. Step 4: Simplify right side
    259,815.24x = 28,383,843,949.74
  5. Step 5: Solve for x
    x = 28,383,843,949.74/259,815.24
  6. Step 6: Final answer
    x = 109,246.26

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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.