Home / 276,218.54-381,150.74-155,357.24

Finding the Fourth Proportional to 276,218.54, 381,150.74 and 155,357.24

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Solution

The fourth proportional to 276,218.54, 381,150.74 and 155,357.24 is: 214,375.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,218.54 : 381,150.74 = 155,357.24 : x
  2. Step 2: Convert to fraction form
    276,218.54/381,150.74 = 155,357.24/x
  3. Step 3: Cross multiply
    276,218.54x = 381,150.74 × 155,357.24
  4. Step 4: Simplify right side
    276,218.54x = 59,214,526,213.57
  5. Step 5: Solve for x
    x = 59,214,526,213.57/276,218.54
  6. Step 6: Final answer
    x = 214,375.64

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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.