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Finding the Fourth Proportional to 323,989.94, 486,201.83 and 134,450.50

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Solution

The fourth proportional to 323,989.94, 486,201.83 and 134,450.50 is: 201,765.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,989.94 : 486,201.83 = 134,450.50 : x
  2. Step 2: Convert to fraction form
    323,989.94/486,201.83 = 134,450.50/x
  3. Step 3: Cross multiply
    323,989.94x = 486,201.83 × 134,450.50
  4. Step 4: Simplify right side
    323,989.94x = 65,370,077,256.66
  5. Step 5: Solve for x
    x = 65,370,077,256.66/323,989.94
  6. Step 6: Final answer
    x = 201,765.77

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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.