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Finding the Fourth Proportional to 327,223.80, 490,471.20 and 127,477.80

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Solution

The fourth proportional to 327,223.80, 490,471.20 and 127,477.80 is: 191,074.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,223.80 : 490,471.20 = 127,477.80 : x
  2. Step 2: Convert to fraction form
    327,223.80/490,471.20 = 127,477.80/x
  3. Step 3: Cross multiply
    327,223.80x = 490,471.20 × 127,477.80
  4. Step 4: Simplify right side
    327,223.80x = 62,524,189,539.36
  5. Step 5: Solve for x
    x = 62,524,189,539.36/327,223.80
  6. Step 6: Final answer
    x = 191,074.70

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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.