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Finding the Fourth Proportional to 330,278.70, 455,786.92 and 179,375.70

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Solution

The fourth proportional to 330,278.70, 455,786.92 and 179,375.70 is: 247,539.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,278.70 : 455,786.92 = 179,375.70 : x
  2. Step 2: Convert to fraction form
    330,278.70/455,786.92 = 179,375.70/x
  3. Step 3: Cross multiply
    330,278.70x = 455,786.92 × 179,375.70
  4. Step 4: Simplify right side
    330,278.70x = 81,757,097,825.84
  5. Step 5: Solve for x
    x = 81,757,097,825.84/330,278.70
  6. Step 6: Final answer
    x = 247,539.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.