Home / 220,896.20-331,344.30-196,401.80

Finding the Fourth Proportional to 220,896.20, 331,344.30 and 196,401.80

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Solution

The fourth proportional to 220,896.20, 331,344.30 and 196,401.80 is: 294,602.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,896.20 : 331,344.30 = 196,401.80 : x
  2. Step 2: Convert to fraction form
    220,896.20/331,344.30 = 196,401.80/x
  3. Step 3: Cross multiply
    220,896.20x = 331,344.30 × 196,401.80
  4. Step 4: Simplify right side
    220,896.20x = 65,076,616,939.74
  5. Step 5: Solve for x
    x = 65,076,616,939.74/220,896.20
  6. Step 6: Final answer
    x = 294,602.70

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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.