Home / 259,869.90-389,610.45-141,674.70

Finding the Fourth Proportional to 259,869.90, 389,610.45 and 141,674.70

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Solution

The fourth proportional to 259,869.90, 389,610.45 and 141,674.70 is: 212,406.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,869.90 : 389,610.45 = 141,674.70 : x
  2. Step 2: Convert to fraction form
    259,869.90/389,610.45 = 141,674.70/x
  3. Step 3: Cross multiply
    259,869.90x = 389,610.45 × 141,674.70
  4. Step 4: Simplify right side
    259,869.90x = 55,197,943,620.62
  5. Step 5: Solve for x
    x = 55,197,943,620.62/259,869.90
  6. Step 6: Final answer
    x = 212,406.07

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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.