Home / 276,251.40-381,223.06-155,392.70

Finding the Fourth Proportional to 276,251.40, 381,223.06 and 155,392.70

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Solution

The fourth proportional to 276,251.40, 381,223.06 and 155,392.70 is: 214,439.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,251.40 : 381,223.06 = 155,392.70 : x
  2. Step 2: Convert to fraction form
    276,251.40/381,223.06 = 155,392.70/x
  3. Step 3: Cross multiply
    276,251.40x = 381,223.06 × 155,392.70
  4. Step 4: Simplify right side
    276,251.40x = 59,239,280,595.66
  5. Step 5: Solve for x
    x = 59,239,280,595.66/276,251.40
  6. Step 6: Final answer
    x = 214,439.75

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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.