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Finding the Fourth Proportional to 327,062.80, 490,594.20 and 102,440.80

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Solution

The fourth proportional to 327,062.80, 490,594.20 and 102,440.80 is: 153,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,062.80 : 490,594.20 = 102,440.80 : x
  2. Step 2: Convert to fraction form
    327,062.80/490,594.20 = 102,440.80/x
  3. Step 3: Cross multiply
    327,062.80x = 490,594.20 × 102,440.80
  4. Step 4: Simplify right side
    327,062.80x = 50,256,862,323.36
  5. Step 5: Solve for x
    x = 50,256,862,323.36/327,062.80
  6. Step 6: Final answer
    x = 153,661.20

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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.