Home / 327,138.14-490,669.25-90,499.28

Finding the Fourth Proportional to 327,138.14, 490,669.25 and 90,499.28

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Solution

The fourth proportional to 327,138.14, 490,669.25 and 90,499.28 is: 135,738.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,138.14 : 490,669.25 = 90,499.28 : x
  2. Step 2: Convert to fraction form
    327,138.14/490,669.25 = 90,499.28/x
  3. Step 3: Cross multiply
    327,138.14x = 490,669.25 × 90,499.28
  4. Step 4: Simplify right side
    327,138.14x = 44,405,210,937.30
  5. Step 5: Solve for x
    x = 44,405,210,937.30/327,138.14
  6. Step 6: Final answer
    x = 135,738.41

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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.