Home / 259,583.88-389,374.07-139,697.25

Finding the Fourth Proportional to 259,583.88, 389,374.07 and 139,697.25

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Solution

The fourth proportional to 259,583.88, 389,374.07 and 139,697.25 is: 209,544.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,583.88 : 389,374.07 = 139,697.25 : x
  2. Step 2: Convert to fraction form
    259,583.88/389,374.07 = 139,697.25/x
  3. Step 3: Cross multiply
    259,583.88x = 389,374.07 × 139,697.25
  4. Step 4: Simplify right side
    259,583.88x = 54,394,486,800.31
  5. Step 5: Solve for x
    x = 54,394,486,800.31/259,583.88
  6. Step 6: Final answer
    x = 209,544.93

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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.