Home / 259,766.06-389,304.64-133,401.20

Finding the Fourth Proportional to 259,766.06, 389,304.64 and 133,401.20

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Solution

The fourth proportional to 259,766.06, 389,304.64 and 133,401.20 is: 199,924.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,766.06 : 389,304.64 = 133,401.20 : x
  2. Step 2: Convert to fraction form
    259,766.06/389,304.64 = 133,401.20/x
  3. Step 3: Cross multiply
    259,766.06x = 389,304.64 × 133,401.20
  4. Step 4: Simplify right side
    259,766.06x = 51,933,705,474.56
  5. Step 5: Solve for x
    x = 51,933,705,474.56/259,766.06
  6. Step 6: Final answer
    x = 199,924.91

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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.