Home / 220,835.20-331,277.10-80,624.20

Finding the Fourth Proportional to 220,835.20, 331,277.10 and 80,624.20

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Solution

The fourth proportional to 220,835.20, 331,277.10 and 80,624.20 is: 120,945.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,835.20 : 331,277.10 = 80,624.20 : x
  2. Step 2: Convert to fraction form
    220,835.20/331,277.10 = 80,624.20/x
  3. Step 3: Cross multiply
    220,835.20x = 331,277.10 × 80,624.20
  4. Step 4: Simplify right side
    220,835.20x = 26,708,951,165.82
  5. Step 5: Solve for x
    x = 26,708,951,165.82/220,835.20
  6. Step 6: Final answer
    x = 120,945.17

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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.