Home / 259,786.20-388,901.70-231,792.60

Finding the Fourth Proportional to 259,786.20, 388,901.70 and 231,792.60

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Solution

The fourth proportional to 259,786.20, 388,901.70 and 231,792.60 is: 346,995.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,786.20 : 388,901.70 = 231,792.60 : x
  2. Step 2: Convert to fraction form
    259,786.20/388,901.70 = 231,792.60/x
  3. Step 3: Cross multiply
    259,786.20x = 388,901.70 × 231,792.60
  4. Step 4: Simplify right side
    259,786.20x = 90,144,536,187.42
  5. Step 5: Solve for x
    x = 90,144,536,187.42/259,786.20
  6. Step 6: Final answer
    x = 346,995.09

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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.