Home / 276,240.52-381,195.78-153,729.64

Finding the Fourth Proportional to 276,240.52, 381,195.78 and 153,729.64

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Solution

The fourth proportional to 276,240.52, 381,195.78 and 153,729.64 is: 212,137.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,240.52 : 381,195.78 = 153,729.64 : x
  2. Step 2: Convert to fraction form
    276,240.52/381,195.78 = 153,729.64/x
  3. Step 3: Cross multiply
    276,240.52x = 381,195.78 × 153,729.64
  4. Step 4: Simplify right side
    276,240.52x = 58,601,090,028.92
  5. Step 5: Solve for x
    x = 58,601,090,028.92/276,240.52
  6. Step 6: Final answer
    x = 212,137.92

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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.