Home / 276,172.36-381,084.39-153,635.79

Finding the Fourth Proportional to 276,172.36, 381,084.39 and 153,635.79

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Solution

The fourth proportional to 276,172.36, 381,084.39 and 153,635.79 is: 211,998.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,172.36 : 381,084.39 = 153,635.79 : x
  2. Step 2: Convert to fraction form
    276,172.36/381,084.39 = 153,635.79/x
  3. Step 3: Cross multiply
    276,172.36x = 381,084.39 × 153,635.79
  4. Step 4: Simplify right side
    276,172.36x = 58,548,200,546.14
  5. Step 5: Solve for x
    x = 58,548,200,546.14/276,172.36
  6. Step 6: Final answer
    x = 211,998.77

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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.