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Finding the Fourth Proportional to 299,733.60, 449,600.40 and 275,239.20

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Solution

The fourth proportional to 299,733.60, 449,600.40 and 275,239.20 is: 412,858.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,733.60 : 449,600.40 = 275,239.20 : x
  2. Step 2: Convert to fraction form
    299,733.60/449,600.40 = 275,239.20/x
  3. Step 3: Cross multiply
    299,733.60x = 449,600.40 × 275,239.20
  4. Step 4: Simplify right side
    299,733.60x = 123,747,654,415.68
  5. Step 5: Solve for x
    x = 123,747,654,415.68/299,733.60
  6. Step 6: Final answer
    x = 412,858.80

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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.