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Finding the Fourth Proportional to 408,093.36, 612,139.26 and 108,574.26

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Solution

The fourth proportional to 408,093.36, 612,139.26 and 108,574.26 is: 162,861.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,093.36 : 612,139.26 = 108,574.26 : x
  2. Step 2: Convert to fraction form
    408,093.36/612,139.26 = 108,574.26/x
  3. Step 3: Cross multiply
    408,093.36x = 612,139.26 × 108,574.26
  4. Step 4: Simplify right side
    408,093.36x = 66,462,567,171.45
  5. Step 5: Solve for x
    x = 66,462,567,171.45/408,093.36
  6. Step 6: Final answer
    x = 162,861.18

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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.