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Finding the Fourth Proportional to 300,046.80, 449,551.80 and 253,390.80

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Solution

The fourth proportional to 300,046.80, 449,551.80 and 253,390.80 is: 379,648.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,046.80 : 449,551.80 = 253,390.80 : x
  2. Step 2: Convert to fraction form
    300,046.80/449,551.80 = 253,390.80/x
  3. Step 3: Cross multiply
    300,046.80x = 449,551.80 × 253,390.80
  4. Step 4: Simplify right side
    300,046.80x = 113,912,290,243.44
  5. Step 5: Solve for x
    x = 113,912,290,243.44/300,046.80
  6. Step 6: Final answer
    x = 379,648.41

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1.5x scale

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.