Home / 276,660.11-381,798.07-155,805.58

Finding the Fourth Proportional to 276,660.11, 381,798.07 and 155,805.58

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Solution

The fourth proportional to 276,660.11, 381,798.07 and 155,805.58 is: 215,015.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,660.11 : 381,798.07 = 155,805.58 : x
  2. Step 2: Convert to fraction form
    276,660.11/381,798.07 = 155,805.58/x
  3. Step 3: Cross multiply
    276,660.11x = 381,798.07 × 155,805.58
  4. Step 4: Simplify right side
    276,660.11x = 59,486,270,703.37
  5. Step 5: Solve for x
    x = 59,486,270,703.37/276,660.11
  6. Step 6: Final answer
    x = 215,015.71

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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.