Home / 220,814.64-331,227.40-80,573.24

Finding the Fourth Proportional to 220,814.64, 331,227.40 and 80,573.24

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Solution

The fourth proportional to 220,814.64, 331,227.40 and 80,573.24 is: 120,861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,814.64 : 331,227.40 = 80,573.24 : x
  2. Step 2: Convert to fraction form
    220,814.64/331,227.40 = 80,573.24/x
  3. Step 3: Cross multiply
    220,814.64x = 331,227.40 × 80,573.24
  4. Step 4: Simplify right side
    220,814.64x = 26,688,064,794.78
  5. Step 5: Solve for x
    x = 26,688,064,794.78/220,814.64
  6. Step 6: Final answer
    x = 120,861.85

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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.