Home / 276,056.84-380,956.14-155,198.66

Finding the Fourth Proportional to 276,056.84, 380,956.14 and 155,198.66

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Solution

The fourth proportional to 276,056.84, 380,956.14 and 155,198.66 is: 214,172.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,056.84 : 380,956.14 = 155,198.66 : x
  2. Step 2: Convert to fraction form
    276,056.84/380,956.14 = 155,198.66/x
  3. Step 3: Cross multiply
    276,056.84x = 380,956.14 × 155,198.66
  4. Step 4: Simplify right side
    276,056.84x = 59,123,882,446.77
  5. Step 5: Solve for x
    x = 59,123,882,446.77/276,056.84
  6. Step 6: Final answer
    x = 214,172.86

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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.