Home / 276,687.41-381,824.57-155,828.93

Finding the Fourth Proportional to 276,687.41, 381,824.57 and 155,828.93

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Solution

The fourth proportional to 276,687.41, 381,824.57 and 155,828.93 is: 215,041.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,687.41 : 381,824.57 = 155,828.93 : x
  2. Step 2: Convert to fraction form
    276,687.41/381,824.57 = 155,828.93/x
  3. Step 3: Cross multiply
    276,687.41x = 381,824.57 × 155,828.93
  4. Step 4: Simplify right side
    276,687.41x = 59,499,313,411.67
  5. Step 5: Solve for x
    x = 59,499,313,411.67/276,687.41
  6. Step 6: Final answer
    x = 215,041.64

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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.