Home / 299,712.20-449,568.30-122,127.80

Finding the Fourth Proportional to 299,712.20, 449,568.30 and 122,127.80

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Solution

The fourth proportional to 299,712.20, 449,568.30 and 122,127.80 is: 183,191.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,712.20 : 449,568.30 = 122,127.80 : x
  2. Step 2: Convert to fraction form
    299,712.20/449,568.30 = 122,127.80/x
  3. Step 3: Cross multiply
    299,712.20x = 449,568.30 × 122,127.80
  4. Step 4: Simplify right side
    299,712.20x = 54,904,787,428.74
  5. Step 5: Solve for x
    x = 54,904,787,428.74/299,712.20
  6. Step 6: Final answer
    x = 183,191.70

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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.