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Finding the Fourth Proportional to 327,071.76, 451,400.76 and 199,720.56

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Solution

The fourth proportional to 327,071.76, 451,400.76 and 199,720.56 is: 275,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,071.76 : 451,400.76 = 199,720.56 : x
  2. Step 2: Convert to fraction form
    327,071.76/451,400.76 = 199,720.56/x
  3. Step 3: Cross multiply
    327,071.76x = 451,400.76 × 199,720.56
  4. Step 4: Simplify right side
    327,071.76x = 90,154,012,571.63
  5. Step 5: Solve for x
    x = 90,154,012,571.63/327,071.76
  6. Step 6: Final answer
    x = 275,639.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.