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Finding the Fourth Proportional to 274,571.82, 378,713.74 and 251,983.77

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Solution

The fourth proportional to 274,571.82, 378,713.74 and 251,983.77 is: 347,558.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,571.82 : 378,713.74 = 251,983.77 : x
  2. Step 2: Convert to fraction form
    274,571.82/378,713.74 = 251,983.77/x
  3. Step 3: Cross multiply
    274,571.82x = 378,713.74 × 251,983.77
  4. Step 4: Simplify right side
    274,571.82x = 95,429,715,956.00
  5. Step 5: Solve for x
    x = 95,429,715,956.00/274,571.82
  6. Step 6: Final answer
    x = 347,558.30

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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.