Home / 276,229.48-381,192.78-155,370.64

Finding the Fourth Proportional to 276,229.48, 381,192.78 and 155,370.64

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Solution

The fourth proportional to 276,229.48, 381,192.78 and 155,370.64 is: 214,409.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,229.48 : 381,192.78 = 155,370.64 : x
  2. Step 2: Convert to fraction form
    276,229.48/381,192.78 = 155,370.64/x
  3. Step 3: Cross multiply
    276,229.48x = 381,192.78 × 155,370.64
  4. Step 4: Simplify right side
    276,229.48x = 59,226,166,191.98
  5. Step 5: Solve for x
    x = 59,226,166,191.98/276,229.48
  6. Step 6: Final answer
    x = 214,409.29

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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.