Home / 281,789.60-421,983.20-197,153.80

Finding the Fourth Proportional to 281,789.60, 421,983.20 and 197,153.80

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Solution

The fourth proportional to 281,789.60, 421,983.20 and 197,153.80 is: 295,240.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,789.60 : 421,983.20 = 197,153.80 : x
  2. Step 2: Convert to fraction form
    281,789.60/421,983.20 = 197,153.80/x
  3. Step 3: Cross multiply
    281,789.60x = 421,983.20 × 197,153.80
  4. Step 4: Simplify right side
    281,789.60x = 83,195,591,416.16
  5. Step 5: Solve for x
    x = 83,195,591,416.16/281,789.60
  6. Step 6: Final answer
    x = 295,240.11

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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.