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Finding the Fourth Proportional to 299,940.10, 449,845.35 and 131,460.10

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Solution

The fourth proportional to 299,940.10, 449,845.35 and 131,460.10 is: 197,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,940.10 : 449,845.35 = 131,460.10 : x
  2. Step 2: Convert to fraction form
    299,940.10/449,845.35 = 131,460.10/x
  3. Step 3: Cross multiply
    299,940.10x = 449,845.35 × 131,460.10
  4. Step 4: Simplify right side
    299,940.10x = 59,136,714,695.54
  5. Step 5: Solve for x
    x = 59,136,714,695.54/299,940.10
  6. Step 6: Final answer
    x = 197,161.75

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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.