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Finding the Fourth Proportional to 299,984.80, 449,458.80 and 253,328.80

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Solution

The fourth proportional to 299,984.80, 449,458.80 and 253,328.80 is: 379,555.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,984.80 : 449,458.80 = 253,328.80 : x
  2. Step 2: Convert to fraction form
    299,984.80/449,458.80 = 253,328.80/x
  3. Step 3: Cross multiply
    299,984.80x = 449,458.80 × 253,328.80
  4. Step 4: Simplify right side
    299,984.80x = 113,860,858,453.44
  5. Step 5: Solve for x
    x = 113,860,858,453.44/299,984.80
  6. Step 6: Final answer
    x = 379,555.43

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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.