Home / 276,571.20-381,675.48-155,716.92

Finding the Fourth Proportional to 276,571.20, 381,675.48 and 155,716.92

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Solution

The fourth proportional to 276,571.20, 381,675.48 and 155,716.92 is: 214,893.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,571.20 : 381,675.48 = 155,716.92 : x
  2. Step 2: Convert to fraction form
    276,571.20/381,675.48 = 155,716.92/x
  3. Step 3: Cross multiply
    276,571.20x = 381,675.48 × 155,716.92
  4. Step 4: Simplify right side
    276,571.20x = 59,433,330,185.12
  5. Step 5: Solve for x
    x = 59,433,330,185.12/276,571.20
  6. Step 6: Final answer
    x = 214,893.42

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1.5x scale

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.