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Finding the Fourth Proportional to 511,849.20, 768,004.20 and 245,506.80

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Solution

The fourth proportional to 511,849.20, 768,004.20 and 245,506.80 is: 368,370.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,849.20 : 768,004.20 = 245,506.80 : x
  2. Step 2: Convert to fraction form
    511,849.20/768,004.20 = 245,506.80/x
  3. Step 3: Cross multiply
    511,849.20x = 768,004.20 × 245,506.80
  4. Step 4: Simplify right side
    511,849.20x = 188,550,253,528.56
  5. Step 5: Solve for x
    x = 188,550,253,528.56/511,849.20
  6. Step 6: Final answer
    x = 368,370.71

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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.