Home / 276,811.33-381,999.63-149,486.91

Finding the Fourth Proportional to 276,811.33, 381,999.63 and 149,486.91

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Solution

The fourth proportional to 276,811.33, 381,999.63 and 149,486.91 is: 206,291.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,811.33 : 381,999.63 = 149,486.91 : x
  2. Step 2: Convert to fraction form
    276,811.33/381,999.63 = 149,486.91/x
  3. Step 3: Cross multiply
    276,811.33x = 381,999.63 × 149,486.91
  4. Step 4: Simplify right side
    276,811.33x = 57,103,943,562.41
  5. Step 5: Solve for x
    x = 57,103,943,562.41/276,811.33
  6. Step 6: Final answer
    x = 206,291.93

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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.