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Finding the Fourth Proportional to 299,662.20, 449,493.30 and 122,077.80

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Solution

The fourth proportional to 299,662.20, 449,493.30 and 122,077.80 is: 183,116.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,662.20 : 449,493.30 = 122,077.80 : x
  2. Step 2: Convert to fraction form
    299,662.20/449,493.30 = 122,077.80/x
  3. Step 3: Cross multiply
    299,662.20x = 449,493.30 × 122,077.80
  4. Step 4: Simplify right side
    299,662.20x = 54,873,153,178.74
  5. Step 5: Solve for x
    x = 54,873,153,178.74/299,662.20
  6. Step 6: Final answer
    x = 183,116.70

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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.