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Finding the Fourth Proportional to 449,038.20, 673,650.90 and 149,611.80

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Solution

The fourth proportional to 449,038.20, 673,650.90 and 149,611.80 is: 224,448.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,038.20 : 673,650.90 = 149,611.80 : x
  2. Step 2: Convert to fraction form
    449,038.20/673,650.90 = 149,611.80/x
  3. Step 3: Cross multiply
    449,038.20x = 673,650.90 × 149,611.80
  4. Step 4: Simplify right side
    449,038.20x = 100,786,123,720.62
  5. Step 5: Solve for x
    x = 100,786,123,720.62/449,038.20
  6. Step 6: Final answer
    x = 224,448.89

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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.