Home / 276,231.78-381,196.03-155,373.15

Finding the Fourth Proportional to 276,231.78, 381,196.03 and 155,373.15

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Solution

The fourth proportional to 276,231.78, 381,196.03 and 155,373.15 is: 214,412.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,231.78 : 381,196.03 = 155,373.15 : x
  2. Step 2: Convert to fraction form
    276,231.78/381,196.03 = 155,373.15/x
  3. Step 3: Cross multiply
    276,231.78x = 381,196.03 × 155,373.15
  4. Step 4: Simplify right side
    276,231.78x = 59,227,627,560.16
  5. Step 5: Solve for x
    x = 59,227,627,560.16/276,231.78
  6. Step 6: Final answer
    x = 214,412.79

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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.