Home / 300,039.20-449,986.80-173,405.60

Finding the Fourth Proportional to 300,039.20, 449,986.80 and 173,405.60

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Solution

The fourth proportional to 300,039.20, 449,986.80 and 173,405.60 is: 260,066.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,039.20 : 449,986.80 = 173,405.60 : x
  2. Step 2: Convert to fraction form
    300,039.20/449,986.80 = 173,405.60/x
  3. Step 3: Cross multiply
    300,039.20x = 449,986.80 × 173,405.60
  4. Step 4: Simplify right side
    300,039.20x = 78,030,231,046.08
  5. Step 5: Solve for x
    x = 78,030,231,046.08/300,039.20
  6. Step 6: Final answer
    x = 260,066.79

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1.5x scale

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.