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Finding the Fourth Proportional to 323,989.56, 486,201.26 and 134,450.11

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Solution

The fourth proportional to 323,989.56, 486,201.26 and 134,450.11 is: 201,765.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,989.56 : 486,201.26 = 134,450.11 : x
  2. Step 2: Convert to fraction form
    323,989.56/486,201.26 = 134,450.11/x
  3. Step 3: Cross multiply
    323,989.56x = 486,201.26 × 134,450.11
  4. Step 4: Simplify right side
    323,989.56x = 65,369,813,833.02
  5. Step 5: Solve for x
    x = 65,369,813,833.02/323,989.56
  6. Step 6: Final answer
    x = 201,765.19

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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.