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Finding the Fourth Proportional to 246,660, 369,990 and 80,448

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Solution

The fourth proportional to 246,660, 369,990 and 80,448 is: 120,672

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,660 : 369,990 = 80,448 : x
  2. Step 2: Convert to fraction form
    246,660/369,990 = 80,448/x
  3. Step 3: Cross multiply
    246,660x = 369,990 × 80,448
  4. Step 4: Simplify right side
    246,660x = 29,764,955,520
  5. Step 5: Solve for x
    x = 29,764,955,520/246,660
  6. Step 6: Final answer
    x = 120,672

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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.