Home / 299,921.20-449,809.80-173,287.60

Finding the Fourth Proportional to 299,921.20, 449,809.80 and 173,287.60

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Solution

The fourth proportional to 299,921.20, 449,809.80 and 173,287.60 is: 259,889.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,921.20 : 449,809.80 = 173,287.60 : x
  2. Step 2: Convert to fraction form
    299,921.20/449,809.80 = 173,287.60/x
  3. Step 3: Cross multiply
    299,921.20x = 449,809.80 × 173,287.60
  4. Step 4: Simplify right side
    299,921.20x = 77,946,460,698.48
  5. Step 5: Solve for x
    x = 77,946,460,698.48/299,921.20
  6. Step 6: Final answer
    x = 259,889.80

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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.