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Finding the Fourth Proportional to 235,025, 324,334.50 and 129,041

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Solution

The fourth proportional to 235,025, 324,334.50 and 129,041 is: 178,076.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,025 : 324,334.50 = 129,041 : x
  2. Step 2: Convert to fraction form
    235,025/324,334.50 = 129,041/x
  3. Step 3: Cross multiply
    235,025x = 324,334.50 × 129,041
  4. Step 4: Simplify right side
    235,025x = 41,852,448,214.50
  5. Step 5: Solve for x
    x = 41,852,448,214.50/235,025
  6. Step 6: Final answer
    x = 178,076.58

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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.