Home / 218,515.28-327,819.69-123,790.23

Finding the Fourth Proportional to 218,515.28, 327,819.69 and 123,790.23

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Solution

The fourth proportional to 218,515.28, 327,819.69 and 123,790.23 is: 185,711.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,515.28 : 327,819.69 = 123,790.23 : x
  2. Step 2: Convert to fraction form
    218,515.28/327,819.69 = 123,790.23/x
  3. Step 3: Cross multiply
    218,515.28x = 327,819.69 × 123,790.23
  4. Step 4: Simplify right side
    218,515.28x = 40,580,874,823.63
  5. Step 5: Solve for x
    x = 40,580,874,823.63/218,515.28
  6. Step 6: Final answer
    x = 185,711.84

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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.