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Finding the Fourth Proportional to 449,426.85, 674,142.80 and 149,906.60

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Solution

The fourth proportional to 449,426.85, 674,142.80 and 149,906.60 is: 224,860.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,426.85 : 674,142.80 = 149,906.60 : x
  2. Step 2: Convert to fraction form
    449,426.85/674,142.80 = 149,906.60/x
  3. Step 3: Cross multiply
    449,426.85x = 674,142.80 × 149,906.60
  4. Step 4: Simplify right side
    449,426.85x = 101,058,455,062.48
  5. Step 5: Solve for x
    x = 101,058,455,062.48/449,426.85
  6. Step 6: Final answer
    x = 224,860.74

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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.