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Finding the Fourth Proportional to 373,648.68, 515,647.62 and 203,892.12

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Solution

The fourth proportional to 373,648.68, 515,647.62 and 203,892.12 is: 281,377.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,648.68 : 515,647.62 = 203,892.12 : x
  2. Step 2: Convert to fraction form
    373,648.68/515,647.62 = 203,892.12/x
  3. Step 3: Cross multiply
    373,648.68x = 515,647.62 × 203,892.12
  4. Step 4: Simplify right side
    373,648.68x = 105,136,486,414.75
  5. Step 5: Solve for x
    x = 105,136,486,414.75/373,648.68
  6. Step 6: Final answer
    x = 281,377.91

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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.