Home / 263,150.14-394,730.10-85,656.46

Finding the Fourth Proportional to 263,150.14, 394,730.10 and 85,656.46

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Solution

The fourth proportional to 263,150.14, 394,730.10 and 85,656.46 is: 128,486.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,150.14 : 394,730.10 = 85,656.46 : x
  2. Step 2: Convert to fraction form
    263,150.14/394,730.10 = 85,656.46/x
  3. Step 3: Cross multiply
    263,150.14x = 394,730.10 × 85,656.46
  4. Step 4: Simplify right side
    263,150.14x = 33,811,183,021.45
  5. Step 5: Solve for x
    x = 33,811,183,021.45/263,150.14
  6. Step 6: Final answer
    x = 128,486.28

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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.