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Finding the Fourth Proportional to 179,622, 269,471.88 and 68,814

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Solution

The fourth proportional to 179,622, 269,471.88 and 68,814 is: 103,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,622 : 269,471.88 = 68,814 : x
  2. Step 2: Convert to fraction form
    179,622/269,471.88 = 68,814/x
  3. Step 3: Cross multiply
    179,622x = 269,471.88 × 68,814
  4. Step 4: Simplify right side
    179,622x = 18,543,437,950.32
  5. Step 5: Solve for x
    x = 18,543,437,950.32/179,622
  6. Step 6: Final answer
    x = 103,235.90

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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.