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Finding the Fourth Proportional to 505,466.25, 757,945.84 and 168,388.39

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Solution

The fourth proportional to 505,466.25, 757,945.84 and 168,388.39 is: 252,498.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,466.25 : 757,945.84 = 168,388.39 : x
  2. Step 2: Convert to fraction form
    505,466.25/757,945.84 = 168,388.39/x
  3. Step 3: Cross multiply
    505,466.25x = 757,945.84 × 168,388.39
  4. Step 4: Simplify right side
    505,466.25x = 127,629,279,704.80
  5. Step 5: Solve for x
    x = 127,629,279,704.80/505,466.25
  6. Step 6: Final answer
    x = 252,498.12

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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.