Home / 327,091.20-490,636.80-140,121.60

Finding the Fourth Proportional to 327,091.20, 490,636.80 and 140,121.60

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Solution

The fourth proportional to 327,091.20, 490,636.80 and 140,121.60 is: 210,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,091.20 : 490,636.80 = 140,121.60 : x
  2. Step 2: Convert to fraction form
    327,091.20/490,636.80 = 140,121.60/x
  3. Step 3: Cross multiply
    327,091.20x = 490,636.80 × 140,121.60
  4. Step 4: Simplify right side
    327,091.20x = 68,748,813,434.88
  5. Step 5: Solve for x
    x = 68,748,813,434.88/327,091.20
  6. Step 6: Final answer
    x = 210,182.40

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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.