Home / 275,589.03-412,995.86-219,178.78

Finding the Fourth Proportional to 275,589.03, 412,995.86 and 219,178.78

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Solution

The fourth proportional to 275,589.03, 412,995.86 and 219,178.78 is: 328,459.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,589.03 : 412,995.86 = 219,178.78 : x
  2. Step 2: Convert to fraction form
    275,589.03/412,995.86 = 219,178.78/x
  3. Step 3: Cross multiply
    275,589.03x = 412,995.86 × 219,178.78
  4. Step 4: Simplify right side
    275,589.03x = 90,519,927,433.39
  5. Step 5: Solve for x
    x = 90,519,927,433.39/275,589.03
  6. Step 6: Final answer
    x = 328,459.84

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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.