Home / 299,839.20-449,931.60-112,984.80

Finding the Fourth Proportional to 299,839.20, 449,931.60 and 112,984.80

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Solution

The fourth proportional to 299,839.20, 449,931.60 and 112,984.80 is: 169,542.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,839.20 : 449,931.60 = 112,984.80 : x
  2. Step 2: Convert to fraction form
    299,839.20/449,931.60 = 112,984.80/x
  3. Step 3: Cross multiply
    299,839.20x = 449,931.60 × 112,984.80
  4. Step 4: Simplify right side
    299,839.20x = 50,835,431,839.68
  5. Step 5: Solve for x
    x = 50,835,431,839.68/299,839.20
  6. Step 6: Final answer
    x = 169,542.31

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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.