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Finding the Fourth Proportional to 269,879.20, 404,867.40 and 112,123.60

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Solution

The fourth proportional to 269,879.20, 404,867.40 and 112,123.60 is: 168,205.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,879.20 : 404,867.40 = 112,123.60 : x
  2. Step 2: Convert to fraction form
    269,879.20/404,867.40 = 112,123.60/x
  3. Step 3: Cross multiply
    269,879.20x = 404,867.40 × 112,123.60
  4. Step 4: Simplify right side
    269,879.20x = 45,395,190,410.64
  5. Step 5: Solve for x
    x = 45,395,190,410.64/269,879.20
  6. Step 6: Final answer
    x = 168,205.59

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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.