Home / 276,796.35-381,977.15-155,976.57

Finding the Fourth Proportional to 276,796.35, 381,977.15 and 155,976.57

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Solution

The fourth proportional to 276,796.35, 381,977.15 and 155,976.57 is: 215,246.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,796.35 : 381,977.15 = 155,976.57 : x
  2. Step 2: Convert to fraction form
    276,796.35/381,977.15 = 155,976.57/x
  3. Step 3: Cross multiply
    276,796.35x = 381,977.15 × 155,976.57
  4. Step 4: Simplify right side
    276,796.35x = 59,579,484,895.49
  5. Step 5: Solve for x
    x = 59,579,484,895.49/276,796.35
  6. Step 6: Final answer
    x = 215,246.64

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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.