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Finding the Fourth Proportional to 299,455.80, 449,183.70 and 122,090.10

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Solution

The fourth proportional to 299,455.80, 449,183.70 and 122,090.10 is: 183,135.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,455.80 : 449,183.70 = 122,090.10 : x
  2. Step 2: Convert to fraction form
    299,455.80/449,183.70 = 122,090.10/x
  3. Step 3: Cross multiply
    299,455.80x = 449,183.70 × 122,090.10
  4. Step 4: Simplify right side
    299,455.80x = 54,840,882,851.37
  5. Step 5: Solve for x
    x = 54,840,882,851.37/299,455.80
  6. Step 6: Final answer
    x = 183,135.15

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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.