Home / 220,890.30-331,335.45-206,018.70

Finding the Fourth Proportional to 220,890.30, 331,335.45 and 206,018.70

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Solution

The fourth proportional to 220,890.30, 331,335.45 and 206,018.70 is: 309,028.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,890.30 : 331,335.45 = 206,018.70 : x
  2. Step 2: Convert to fraction form
    220,890.30/331,335.45 = 206,018.70/x
  3. Step 3: Cross multiply
    220,890.30x = 331,335.45 × 206,018.70
  4. Step 4: Simplify right side
    220,890.30x = 68,261,298,672.92
  5. Step 5: Solve for x
    x = 68,261,298,672.92/220,890.30
  6. Step 6: Final answer
    x = 309,028.05

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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.