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Finding the Fourth Proportional to 274,893.57, 379,270.55 and 177,943.86

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Solution

The fourth proportional to 274,893.57, 379,270.55 and 177,943.86 is: 245,509.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,893.57 : 379,270.55 = 177,943.86 : x
  2. Step 2: Convert to fraction form
    274,893.57/379,270.55 = 177,943.86/x
  3. Step 3: Cross multiply
    274,893.57x = 379,270.55 × 177,943.86
  4. Step 4: Simplify right side
    274,893.57x = 67,488,864,761.60
  5. Step 5: Solve for x
    x = 67,488,864,761.60/274,893.57
  6. Step 6: Final answer
    x = 245,509.07

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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.