Home / 449,039.20-673,652.40-149,612.80

Finding the Fourth Proportional to 449,039.20, 673,652.40 and 149,612.80

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Solution

The fourth proportional to 449,039.20, 673,652.40 and 149,612.80 is: 224,450.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,039.20 : 673,652.40 = 149,612.80 : x
  2. Step 2: Convert to fraction form
    449,039.20/673,652.40 = 149,612.80/x
  3. Step 3: Cross multiply
    449,039.20x = 673,652.40 × 149,612.80
  4. Step 4: Simplify right side
    449,039.20x = 100,787,021,790.72
  5. Step 5: Solve for x
    x = 100,787,021,790.72/449,039.20
  6. Step 6: Final answer
    x = 224,450.39

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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.