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Finding the Fourth Proportional to 299,375.64, 449,062.20 and 121,840.56

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Solution

The fourth proportional to 299,375.64, 449,062.20 and 121,840.56 is: 182,760.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,375.64 : 449,062.20 = 121,840.56 : x
  2. Step 2: Convert to fraction form
    299,375.64/449,062.20 = 121,840.56/x
  3. Step 3: Cross multiply
    299,375.64x = 449,062.20 × 121,840.56
  4. Step 4: Simplify right side
    299,375.64x = 54,713,989,922.83
  5. Step 5: Solve for x
    x = 54,713,989,922.83/299,375.64
  6. Step 6: Final answer
    x = 182,760.33

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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.