Home / 276,540.48-381,676.32-161,812.44

Finding the Fourth Proportional to 276,540.48, 381,676.32 and 161,812.44

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Solution

The fourth proportional to 276,540.48, 381,676.32 and 161,812.44 is: 223,330.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,540.48 : 381,676.32 = 161,812.44 : x
  2. Step 2: Convert to fraction form
    276,540.48/381,676.32 = 161,812.44/x
  3. Step 3: Cross multiply
    276,540.48x = 381,676.32 × 161,812.44
  4. Step 4: Simplify right side
    276,540.48x = 61,759,976,629.42
  5. Step 5: Solve for x
    x = 61,759,976,629.42/276,540.48
  6. Step 6: Final answer
    x = 223,330.69

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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.