Home / 276,680.96-381,838.30-154,192.36

Finding the Fourth Proportional to 276,680.96, 381,838.30 and 154,192.36

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Solution

The fourth proportional to 276,680.96, 381,838.30 and 154,192.36 is: 212,795.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,680.96 : 381,838.30 = 154,192.36 : x
  2. Step 2: Convert to fraction form
    276,680.96/381,838.30 = 154,192.36/x
  3. Step 3: Cross multiply
    276,680.96x = 381,838.30 × 154,192.36
  4. Step 4: Simplify right side
    276,680.96x = 58,876,548,615.39
  5. Step 5: Solve for x
    x = 58,876,548,615.39/276,680.96
  6. Step 6: Final answer
    x = 212,795.81

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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.