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Finding the Fourth Proportional to 299,748.40, 449,622.60 and 297,998.80

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Solution

The fourth proportional to 299,748.40, 449,622.60 and 297,998.80 is: 446,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,748.40 : 449,622.60 = 297,998.80 : x
  2. Step 2: Convert to fraction form
    299,748.40/449,622.60 = 297,998.80/x
  3. Step 3: Cross multiply
    299,748.40x = 449,622.60 × 297,998.80
  4. Step 4: Simplify right side
    299,748.40x = 133,986,995,252.88
  5. Step 5: Solve for x
    x = 133,986,995,252.88/299,748.40
  6. Step 6: Final answer
    x = 446,998.20

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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.