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Finding the Fourth Proportional to 329,829.90, 494,161.65 and 279,674.70

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Solution

The fourth proportional to 329,829.90, 494,161.65 and 279,674.70 is: 419,017.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,829.90 : 494,161.65 = 279,674.70 : x
  2. Step 2: Convert to fraction form
    329,829.90/494,161.65 = 279,674.70/x
  3. Step 3: Cross multiply
    329,829.90x = 494,161.65 × 279,674.70
  4. Step 4: Simplify right side
    329,829.90x = 138,204,511,215.26
  5. Step 5: Solve for x
    x = 138,204,511,215.26/329,829.90
  6. Step 6: Final answer
    x = 419,017.53

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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.