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Finding the Fourth Proportional to 279,867.94, 419,867.52 and 92,879.44

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Solution

The fourth proportional to 279,867.94, 419,867.52 and 92,879.44 is: 139,340.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,867.94 : 419,867.52 = 92,879.44 : x
  2. Step 2: Convert to fraction form
    279,867.94/419,867.52 = 92,879.44/x
  3. Step 3: Cross multiply
    279,867.94x = 419,867.52 × 92,879.44
  4. Step 4: Simplify right side
    279,867.94x = 38,997,058,733.82
  5. Step 5: Solve for x
    x = 38,997,058,733.82/279,867.94
  6. Step 6: Final answer
    x = 139,340.93

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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.