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Finding the Fourth Proportional to 299,668.80, 449,503.20 and 181,279.20

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Solution

The fourth proportional to 299,668.80, 449,503.20 and 181,279.20 is: 271,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,668.80 : 449,503.20 = 181,279.20 : x
  2. Step 2: Convert to fraction form
    299,668.80/449,503.20 = 181,279.20/x
  3. Step 3: Cross multiply
    299,668.80x = 449,503.20 × 181,279.20
  4. Step 4: Simplify right side
    299,668.80x = 81,485,580,493.44
  5. Step 5: Solve for x
    x = 81,485,580,493.44/299,668.80
  6. Step 6: Final answer
    x = 271,918.80

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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.