Home / 276,334.97-381,341.55-155,476.39

Finding the Fourth Proportional to 276,334.97, 381,341.55 and 155,476.39

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Solution

The fourth proportional to 276,334.97, 381,341.55 and 155,476.39 is: 214,557.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,334.97 : 381,341.55 = 155,476.39 : x
  2. Step 2: Convert to fraction form
    276,334.97/381,341.55 = 155,476.39/x
  3. Step 3: Cross multiply
    276,334.97x = 381,341.55 × 155,476.39
  4. Step 4: Simplify right side
    276,334.97x = 59,289,608,908.40
  5. Step 5: Solve for x
    x = 59,289,608,908.40/276,334.97
  6. Step 6: Final answer
    x = 214,557.03

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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.