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Finding the Fourth Proportional to 299,569.60, 449,229.44 and 121,956

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Solution

The fourth proportional to 299,569.60, 449,229.44 and 121,956 is: 182,883.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,569.60 : 449,229.44 = 121,956 : x
  2. Step 2: Convert to fraction form
    299,569.60/449,229.44 = 121,956/x
  3. Step 3: Cross multiply
    299,569.60x = 449,229.44 × 121,956
  4. Step 4: Simplify right side
    299,569.60x = 54,786,225,584.64
  5. Step 5: Solve for x
    x = 54,786,225,584.64/299,569.60
  6. Step 6: Final answer
    x = 182,883.13

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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.