Home / 276,218.56-381,177.93-155,359.77

Finding the Fourth Proportional to 276,218.56, 381,177.93 and 155,359.77

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Solution

The fourth proportional to 276,218.56, 381,177.93 and 155,359.77 is: 214,394.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,218.56 : 381,177.93 = 155,359.77 : x
  2. Step 2: Convert to fraction form
    276,218.56/381,177.93 = 155,359.77/x
  3. Step 3: Cross multiply
    276,218.56x = 381,177.93 × 155,359.77
  4. Step 4: Simplify right side
    276,218.56x = 59,219,715,520.34
  5. Step 5: Solve for x
    x = 59,219,715,520.34/276,218.56
  6. Step 6: Final answer
    x = 214,394.41

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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.