Home / 327,101.21-451,420.82-189,307.90

Finding the Fourth Proportional to 327,101.21, 451,420.82 and 189,307.90

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Solution

The fourth proportional to 327,101.21, 451,420.82 and 189,307.90 is: 261,257.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,101.21 : 451,420.82 = 189,307.90 : x
  2. Step 2: Convert to fraction form
    327,101.21/451,420.82 = 189,307.90/x
  3. Step 3: Cross multiply
    327,101.21x = 451,420.82 × 189,307.90
  4. Step 4: Simplify right side
    327,101.21x = 85,457,527,778.12
  5. Step 5: Solve for x
    x = 85,457,527,778.12/327,101.21
  6. Step 6: Final answer
    x = 261,257.14

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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.