Home / 220,958.20-331,491.30-102,604.60

Finding the Fourth Proportional to 220,958.20, 331,491.30 and 102,604.60

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Solution

The fourth proportional to 220,958.20, 331,491.30 and 102,604.60 is: 153,931.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,958.20 : 331,491.30 = 102,604.60 : x
  2. Step 2: Convert to fraction form
    220,958.20/331,491.30 = 102,604.60/x
  3. Step 3: Cross multiply
    220,958.20x = 331,491.30 × 102,604.60
  4. Step 4: Simplify right side
    220,958.20x = 34,012,532,239.98
  5. Step 5: Solve for x
    x = 34,012,532,239.98/220,958.20
  6. Step 6: Final answer
    x = 153,931.98

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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.