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Finding the Fourth Proportional to 275,408.10, 413,112.15 and 272,783.70

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Solution

The fourth proportional to 275,408.10, 413,112.15 and 272,783.70 is: 409,175.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,408.10 : 413,112.15 = 272,783.70 : x
  2. Step 2: Convert to fraction form
    275,408.10/413,112.15 = 272,783.70/x
  3. Step 3: Cross multiply
    275,408.10x = 413,112.15 × 272,783.70
  4. Step 4: Simplify right side
    275,408.10x = 112,690,260,791.96
  5. Step 5: Solve for x
    x = 112,690,260,791.96/275,408.10
  6. Step 6: Final answer
    x = 409,175.55

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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.