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Finding the Fourth Proportional to 300,052.80, 449,560.80 and 253,396.80

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Solution

The fourth proportional to 300,052.80, 449,560.80 and 253,396.80 is: 379,657.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,052.80 : 449,560.80 = 253,396.80 : x
  2. Step 2: Convert to fraction form
    300,052.80/449,560.80 = 253,396.80/x
  3. Step 3: Cross multiply
    300,052.80x = 449,560.80 × 253,396.80
  4. Step 4: Simplify right side
    300,052.80x = 113,917,268,125.44
  5. Step 5: Solve for x
    x = 113,917,268,125.44/300,052.80
  6. Step 6: Final answer
    x = 379,657.41

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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.