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Finding the Fourth Proportional to 230,906.20, 346,409.70 and 131,114.20

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Solution

The fourth proportional to 230,906.20, 346,409.70 and 131,114.20 is: 196,699.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,906.20 : 346,409.70 = 131,114.20 : x
  2. Step 2: Convert to fraction form
    230,906.20/346,409.70 = 131,114.20/x
  3. Step 3: Cross multiply
    230,906.20x = 346,409.70 × 131,114.20
  4. Step 4: Simplify right side
    230,906.20x = 45,419,230,687.74
  5. Step 5: Solve for x
    x = 45,419,230,687.74/230,906.20
  6. Step 6: Final answer
    x = 196,699.92

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1.5x scale

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.