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Finding the Fourth Proportional to 299,360.80, 449,103.60 and 99,743.20

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Solution

The fourth proportional to 299,360.80, 449,103.60 and 99,743.20 is: 149,635.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,360.80 : 449,103.60 = 99,743.20 : x
  2. Step 2: Convert to fraction form
    299,360.80/449,103.60 = 99,743.20/x
  3. Step 3: Cross multiply
    299,360.80x = 449,103.60 × 99,743.20
  4. Step 4: Simplify right side
    299,360.80x = 44,795,030,195.52
  5. Step 5: Solve for x
    x = 44,795,030,195.52/299,360.80
  6. Step 6: Final answer
    x = 149,635.59

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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.