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Finding the Fourth Proportional to 373,536, 515,481.21 and 203,773.68

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Solution

The fourth proportional to 373,536, 515,481.21 and 203,773.68 is: 281,208.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,536 : 515,481.21 = 203,773.68 : x
  2. Step 2: Convert to fraction form
    373,536/515,481.21 = 203,773.68/x
  3. Step 3: Cross multiply
    373,536x = 515,481.21 × 203,773.68
  4. Step 4: Simplify right side
    373,536x = 105,041,503,132.55
  5. Step 5: Solve for x
    x = 105,041,503,132.55/373,536
  6. Step 6: Final answer
    x = 281,208.51

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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.