Home / 259,728.06-389,296.80-109,874.82

Finding the Fourth Proportional to 259,728.06, 389,296.80 and 109,874.82

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Solution

The fourth proportional to 259,728.06, 389,296.80 and 109,874.82 is: 164,687.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,728.06 : 389,296.80 = 109,874.82 : x
  2. Step 2: Convert to fraction form
    259,728.06/389,296.80 = 109,874.82/x
  3. Step 3: Cross multiply
    259,728.06x = 389,296.80 × 109,874.82
  4. Step 4: Simplify right side
    259,728.06x = 42,773,915,826.58
  5. Step 5: Solve for x
    x = 42,773,915,826.58/259,728.06
  6. Step 6: Final answer
    x = 164,687.31

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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.