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Finding the Fourth Proportional to 373,781.88, 515,817.18 and 204,015.60

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Solution

The fourth proportional to 373,781.88, 515,817.18 and 204,015.60 is: 281,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,781.88 : 515,817.18 = 204,015.60 : x
  2. Step 2: Convert to fraction form
    373,781.88/515,817.18 = 204,015.60/x
  3. Step 3: Cross multiply
    373,781.88x = 515,817.18 × 204,015.60
  4. Step 4: Simplify right side
    373,781.88x = 105,234,751,468.01
  5. Step 5: Solve for x
    x = 105,234,751,468.01/373,781.88
  6. Step 6: Final answer
    x = 281,540.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.