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Finding the Fourth Proportional to 449,042.20, 673,656.90 and 149,615.80

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Solution

The fourth proportional to 449,042.20, 673,656.90 and 149,615.80 is: 224,454.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,042.20 : 673,656.90 = 149,615.80 : x
  2. Step 2: Convert to fraction form
    449,042.20/673,656.90 = 149,615.80/x
  3. Step 3: Cross multiply
    449,042.20x = 673,656.90 × 149,615.80
  4. Step 4: Simplify right side
    449,042.20x = 100,789,716,019.02
  5. Step 5: Solve for x
    x = 100,789,716,019.02/449,042.20
  6. Step 6: Final answer
    x = 224,454.89

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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.