Home / 299,845.20-449,695.80-173,211.60

Finding the Fourth Proportional to 299,845.20, 449,695.80 and 173,211.60

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Solution

The fourth proportional to 299,845.20, 449,695.80 and 173,211.60 is: 259,775.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,845.20 : 449,695.80 = 173,211.60 : x
  2. Step 2: Convert to fraction form
    299,845.20/449,695.80 = 173,211.60/x
  3. Step 3: Cross multiply
    299,845.20x = 449,695.80 × 173,211.60
  4. Step 4: Simplify right side
    299,845.20x = 77,892,529,031.28
  5. Step 5: Solve for x
    x = 77,892,529,031.28/299,845.20
  6. Step 6: Final answer
    x = 259,775.81

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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.