Home / 276,558.22-381,621.13-155,697.31

Finding the Fourth Proportional to 276,558.22, 381,621.13 and 155,697.31

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Solution

The fourth proportional to 276,558.22, 381,621.13 and 155,697.31 is: 214,845.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,558.22 : 381,621.13 = 155,697.31 : x
  2. Step 2: Convert to fraction form
    276,558.22/381,621.13 = 155,697.31/x
  3. Step 3: Cross multiply
    276,558.22x = 381,621.13 × 155,697.31
  4. Step 4: Simplify right side
    276,558.22x = 59,417,383,380.16
  5. Step 5: Solve for x
    x = 59,417,383,380.16/276,558.22
  6. Step 6: Final answer
    x = 214,845.84

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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.