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Finding the Fourth Proportional to 168,353.40, 252,530.10 and 131,028.60

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Solution

The fourth proportional to 168,353.40, 252,530.10 and 131,028.60 is: 196,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,353.40 : 252,530.10 = 131,028.60 : x
  2. Step 2: Convert to fraction form
    168,353.40/252,530.10 = 131,028.60/x
  3. Step 3: Cross multiply
    168,353.40x = 252,530.10 × 131,028.60
  4. Step 4: Simplify right side
    168,353.40x = 33,088,665,460.86
  5. Step 5: Solve for x
    x = 33,088,665,460.86/168,353.40
  6. Step 6: Final answer
    x = 196,542.90

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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.