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Finding the Fourth Proportional to 276,258.54, 381,270.51 and 155,404.92

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Solution

The fourth proportional to 276,258.54, 381,270.51 and 155,404.92 is: 214,477.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,258.54 : 381,270.51 = 155,404.92 : x
  2. Step 2: Convert to fraction form
    276,258.54/381,270.51 = 155,404.92/x
  3. Step 3: Cross multiply
    276,258.54x = 381,270.51 × 155,404.92
  4. Step 4: Simplify right side
    276,258.54x = 59,251,313,104.91
  5. Step 5: Solve for x
    x = 59,251,313,104.91/276,258.54
  6. Step 6: Final answer
    x = 214,477.76

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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.