Home / 327,139.14-490,670.74-90,500.28

Finding the Fourth Proportional to 327,139.14, 490,670.74 and 90,500.28

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Solution

The fourth proportional to 327,139.14, 490,670.74 and 90,500.28 is: 135,739.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,139.14 : 490,670.74 = 90,500.28 : x
  2. Step 2: Convert to fraction form
    327,139.14/490,670.74 = 90,500.28/x
  3. Step 3: Cross multiply
    327,139.14x = 490,670.74 × 90,500.28
  4. Step 4: Simplify right side
    327,139.14x = 44,405,839,357.81
  5. Step 5: Solve for x
    x = 44,405,839,357.81/327,139.14
  6. Step 6: Final answer
    x = 135,739.92

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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.