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Finding the Fourth Proportional to 373,320.56, 515,193 and 203,564

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Solution

The fourth proportional to 373,320.56, 515,193 and 203,564 is: 280,924.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,320.56 : 515,193 = 203,564 : x
  2. Step 2: Convert to fraction form
    373,320.56/515,193 = 203,564/x
  3. Step 3: Cross multiply
    373,320.56x = 515,193 × 203,564
  4. Step 4: Simplify right side
    373,320.56x = 104,874,747,852
  5. Step 5: Solve for x
    x = 104,874,747,852/373,320.56
  6. Step 6: Final answer
    x = 280,924.11

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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.