Home / 378,230.70-566,981.55-218,142.30

Finding the Fourth Proportional to 378,230.70, 566,981.55 and 218,142.30

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Solution

The fourth proportional to 378,230.70, 566,981.55 and 218,142.30 is: 327,003.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,230.70 : 566,981.55 = 218,142.30 : x
  2. Step 2: Convert to fraction form
    378,230.70/566,981.55 = 218,142.30/x
  3. Step 3: Cross multiply
    378,230.70x = 566,981.55 × 218,142.30
  4. Step 4: Simplify right side
    378,230.70x = 123,682,659,374.57
  5. Step 5: Solve for x
    x = 123,682,659,374.57/378,230.70
  6. Step 6: Final answer
    x = 327,003.23

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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.