Home / 279,997.10-419,995.65-168,022.70

Finding the Fourth Proportional to 279,997.10, 419,995.65 and 168,022.70

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Solution

The fourth proportional to 279,997.10, 419,995.65 and 168,022.70 is: 252,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,997.10 : 419,995.65 = 168,022.70 : x
  2. Step 2: Convert to fraction form
    279,997.10/419,995.65 = 168,022.70/x
  3. Step 3: Cross multiply
    279,997.10x = 419,995.65 × 168,022.70
  4. Step 4: Simplify right side
    279,997.10x = 70,568,803,101.26
  5. Step 5: Solve for x
    x = 70,568,803,101.26/279,997.10
  6. Step 6: Final answer
    x = 252,034.05

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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.