Home / 283,183.68-390,790.50-155,856.54

Finding the Fourth Proportional to 283,183.68, 390,790.50 and 155,856.54

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Solution

The fourth proportional to 283,183.68, 390,790.50 and 155,856.54 is: 215,080.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,183.68 : 390,790.50 = 155,856.54 : x
  2. Step 2: Convert to fraction form
    283,183.68/390,790.50 = 155,856.54/x
  3. Step 3: Cross multiply
    283,183.68x = 390,790.50 × 155,856.54
  4. Step 4: Simplify right side
    283,183.68x = 60,907,255,194.87
  5. Step 5: Solve for x
    x = 60,907,255,194.87/283,183.68
  6. Step 6: Final answer
    x = 215,080.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.