Home / 231,404.20-346,415.10-137,861.80

Finding the Fourth Proportional to 231,404.20, 346,415.10 and 137,861.80

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Solution

The fourth proportional to 231,404.20, 346,415.10 and 137,861.80 is: 206,380.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,404.20 : 346,415.10 = 137,861.80 : x
  2. Step 2: Convert to fraction form
    231,404.20/346,415.10 = 137,861.80/x
  3. Step 3: Cross multiply
    231,404.20x = 346,415.10 × 137,861.80
  4. Step 4: Simplify right side
    231,404.20x = 47,757,409,233.18
  5. Step 5: Solve for x
    x = 47,757,409,233.18/231,404.20
  6. Step 6: Final answer
    x = 206,380.91

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1.5x scale

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.