Home / 218,243.32-327,371.58-85,118.20

Finding the Fourth Proportional to 218,243.32, 327,371.58 and 85,118.20

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Solution

The fourth proportional to 218,243.32, 327,371.58 and 85,118.20 is: 127,679.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,243.32 : 327,371.58 = 85,118.20 : x
  2. Step 2: Convert to fraction form
    218,243.32/327,371.58 = 85,118.20/x
  3. Step 3: Cross multiply
    218,243.32x = 327,371.58 × 85,118.20
  4. Step 4: Simplify right side
    218,243.32x = 27,865,279,620.76
  5. Step 5: Solve for x
    x = 27,865,279,620.76/218,243.32
  6. Step 6: Final answer
    x = 127,679.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.