Home / 276,644.82-381,766.11-155,787.60

Finding the Fourth Proportional to 276,644.82, 381,766.11 and 155,787.60

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Solution

The fourth proportional to 276,644.82, 381,766.11 and 155,787.60 is: 214,984.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,644.82 : 381,766.11 = 155,787.60 : x
  2. Step 2: Convert to fraction form
    276,644.82/381,766.11 = 155,787.60/x
  3. Step 3: Cross multiply
    276,644.82x = 381,766.11 × 155,787.60
  4. Step 4: Simplify right side
    276,644.82x = 59,474,426,038.24
  5. Step 5: Solve for x
    x = 59,474,426,038.24/276,644.82
  6. Step 6: Final answer
    x = 214,984.78

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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.