Home / 276,623.05-381,776.19-155,787.96

Finding the Fourth Proportional to 276,623.05, 381,776.19 and 155,787.96

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Solution

The fourth proportional to 276,623.05, 381,776.19 and 155,787.96 is: 215,007.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,623.05 : 381,776.19 = 155,787.96 : x
  2. Step 2: Convert to fraction form
    276,623.05/381,776.19 = 155,787.96/x
  3. Step 3: Cross multiply
    276,623.05x = 381,776.19 × 155,787.96
  4. Step 4: Simplify right side
    276,623.05x = 59,476,132,516.64
  5. Step 5: Solve for x
    x = 59,476,132,516.64/276,623.05
  6. Step 6: Final answer
    x = 215,007.87

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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.