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Finding the Fourth Proportional to 299,741.20, 449,611.80 and 262,877.20

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Solution

The fourth proportional to 299,741.20, 449,611.80 and 262,877.20 is: 394,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,741.20 : 449,611.80 = 262,877.20 : x
  2. Step 2: Convert to fraction form
    299,741.20/449,611.80 = 262,877.20/x
  3. Step 3: Cross multiply
    299,741.20x = 449,611.80 × 262,877.20
  4. Step 4: Simplify right side
    299,741.20x = 118,192,691,070.96
  5. Step 5: Solve for x
    x = 118,192,691,070.96/299,741.20
  6. Step 6: Final answer
    x = 394,315.80

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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.