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Finding the Fourth Proportional to 327,238.40, 490,857.60 and 325,164.80

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Solution

The fourth proportional to 327,238.40, 490,857.60 and 325,164.80 is: 487,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,238.40 : 490,857.60 = 325,164.80 : x
  2. Step 2: Convert to fraction form
    327,238.40/490,857.60 = 325,164.80/x
  3. Step 3: Cross multiply
    327,238.40x = 490,857.60 × 325,164.80
  4. Step 4: Simplify right side
    327,238.40x = 159,609,613,332.48
  5. Step 5: Solve for x
    x = 159,609,613,332.48/327,238.40
  6. Step 6: Final answer
    x = 487,747.20

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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.