Home / 279,954.02-419,807.50-80,229.08

Finding the Fourth Proportional to 279,954.02, 419,807.50 and 80,229.08

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Solution

The fourth proportional to 279,954.02, 419,807.50 and 80,229.08 is: 120,308.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,954.02 : 419,807.50 = 80,229.08 : x
  2. Step 2: Convert to fraction form
    279,954.02/419,807.50 = 80,229.08/x
  3. Step 3: Cross multiply
    279,954.02x = 419,807.50 × 80,229.08
  4. Step 4: Simplify right side
    279,954.02x = 33,680,770,351.05
  5. Step 5: Solve for x
    x = 33,680,770,351.05/279,954.02
  6. Step 6: Final answer
    x = 120,308.22

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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.