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Finding the Fourth Proportional to 299,361.80, 449,105.10 and 99,744.20

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Solution

The fourth proportional to 299,361.80, 449,105.10 and 99,744.20 is: 149,637.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,361.80 : 449,105.10 = 99,744.20 : x
  2. Step 2: Convert to fraction form
    299,361.80/449,105.10 = 99,744.20/x
  3. Step 3: Cross multiply
    299,361.80x = 449,105.10 × 99,744.20
  4. Step 4: Simplify right side
    299,361.80x = 44,795,628,915.42
  5. Step 5: Solve for x
    x = 44,795,628,915.42/299,361.80
  6. Step 6: Final answer
    x = 149,637.09

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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.