Home / 378,227.70-566,977.05-218,139.30

Finding the Fourth Proportional to 378,227.70, 566,977.05 and 218,139.30

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Solution

The fourth proportional to 378,227.70, 566,977.05 and 218,139.30 is: 326,998.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,227.70 : 566,977.05 = 218,139.30 : x
  2. Step 2: Convert to fraction form
    378,227.70/566,977.05 = 218,139.30/x
  3. Step 3: Cross multiply
    378,227.70x = 566,977.05 × 218,139.30
  4. Step 4: Simplify right side
    378,227.70x = 123,679,976,803.07
  5. Step 5: Solve for x
    x = 123,679,976,803.07/378,227.70
  6. Step 6: Final answer
    x = 326,998.73

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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.