Home / 221,026.20-331,539.28-80,784.82

Finding the Fourth Proportional to 221,026.20, 331,539.28 and 80,784.82

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Solution

The fourth proportional to 221,026.20, 331,539.28 and 80,784.82 is: 121,177.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,026.20 : 331,539.28 = 80,784.82 : x
  2. Step 2: Convert to fraction form
    221,026.20/331,539.28 = 80,784.82/x
  3. Step 3: Cross multiply
    221,026.20x = 331,539.28 × 80,784.82
  4. Step 4: Simplify right side
    221,026.20x = 26,783,341,057.73
  5. Step 5: Solve for x
    x = 26,783,341,057.73/221,026.20
  6. Step 6: Final answer
    x = 121,177.22

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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.