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Finding the Fourth Proportional to 266,662.36, 399,993.93 and 108,890.82

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Solution

The fourth proportional to 266,662.36, 399,993.93 and 108,890.82 is: 163,336.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,662.36 : 399,993.93 = 108,890.82 : x
  2. Step 2: Convert to fraction form
    266,662.36/399,993.93 = 108,890.82/x
  3. Step 3: Cross multiply
    266,662.36x = 399,993.93 × 108,890.82
  4. Step 4: Simplify right side
    266,662.36x = 43,555,664,974.93
  5. Step 5: Solve for x
    x = 43,555,664,974.93/266,662.36
  6. Step 6: Final answer
    x = 163,336.38

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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.