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Finding the Fourth Proportional to 299,362.98, 449,116.26 and 99,685.20

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Solution

The fourth proportional to 299,362.98, 449,116.26 and 99,685.20 is: 149,551.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,362.98 : 449,116.26 = 99,685.20 : x
  2. Step 2: Convert to fraction form
    299,362.98/449,116.26 = 99,685.20/x
  3. Step 3: Cross multiply
    299,362.98x = 449,116.26 × 99,685.20
  4. Step 4: Simplify right side
    299,362.98x = 44,770,244,201.35
  5. Step 5: Solve for x
    x = 44,770,244,201.35/299,362.98
  6. Step 6: Final answer
    x = 149,551.71

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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.