Home / 398,556.20-597,834.30-149,205.80

Finding the Fourth Proportional to 398,556.20, 597,834.30 and 149,205.80

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Solution

The fourth proportional to 398,556.20, 597,834.30 and 149,205.80 is: 223,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,556.20 : 597,834.30 = 149,205.80 : x
  2. Step 2: Convert to fraction form
    398,556.20/597,834.30 = 149,205.80/x
  3. Step 3: Cross multiply
    398,556.20x = 597,834.30 × 149,205.80
  4. Step 4: Simplify right side
    398,556.20x = 89,200,344,998.94
  5. Step 5: Solve for x
    x = 89,200,344,998.94/398,556.20
  6. Step 6: Final answer
    x = 223,808.70

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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.