Home / 318,183.64-439,160.25-201,821.83

Finding the Fourth Proportional to 318,183.64, 439,160.25 and 201,821.83

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Solution

The fourth proportional to 318,183.64, 439,160.25 and 201,821.83 is: 278,556.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,183.64 : 439,160.25 = 201,821.83 : x
  2. Step 2: Convert to fraction form
    318,183.64/439,160.25 = 201,821.83/x
  3. Step 3: Cross multiply
    318,183.64x = 439,160.25 × 201,821.83
  4. Step 4: Simplify right side
    318,183.64x = 88,632,125,318.26
  5. Step 5: Solve for x
    x = 88,632,125,318.26/318,183.64
  6. Step 6: Final answer
    x = 278,556.51

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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.