Home / 371,704.20-557,556.30-259,729.80

Finding the Fourth Proportional to 371,704.20, 557,556.30 and 259,729.80

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Solution

The fourth proportional to 371,704.20, 557,556.30 and 259,729.80 is: 389,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,704.20 : 557,556.30 = 259,729.80 : x
  2. Step 2: Convert to fraction form
    371,704.20/557,556.30 = 259,729.80/x
  3. Step 3: Cross multiply
    371,704.20x = 557,556.30 × 259,729.80
  4. Step 4: Simplify right side
    371,704.20x = 144,813,986,287.74
  5. Step 5: Solve for x
    x = 144,813,986,287.74/371,704.20
  6. Step 6: Final answer
    x = 389,594.70

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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.