Home / 220,808.12-331,217.66-80,566.76

Finding the Fourth Proportional to 220,808.12, 331,217.66 and 80,566.76

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Solution

The fourth proportional to 220,808.12, 331,217.66 and 80,566.76 is: 120,852.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,808.12 : 331,217.66 = 80,566.76 : x
  2. Step 2: Convert to fraction form
    220,808.12/331,217.66 = 80,566.76/x
  3. Step 3: Cross multiply
    220,808.12x = 331,217.66 × 80,566.76
  4. Step 4: Simplify right side
    220,808.12x = 26,685,133,720.98
  5. Step 5: Solve for x
    x = 26,685,133,720.98/220,808.12
  6. Step 6: Final answer
    x = 120,852.14

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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.