Finding the Fourth Proportional to 213,896.96, 321,160.84 and 119,311.94
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Solution
The fourth proportional to 213,896.96, 321,160.84 and 119,311.94 is: 179,143.84
Step by Step Solution
- Step 1: Write the proportion equation
213,896.96 : 321,160.84 = 119,311.94 : x - Step 2: Convert to fraction form
213,896.96/321,160.84 = 119,311.94/x - Step 3: Cross multiply
213,896.96x = 321,160.84 × 119,311.94 - Step 4: Simplify right side
213,896.96x = 38,318,322,872.43 - Step 5: Solve for x
x = 38,318,322,872.43/213,896.96 - Step 6: Final answer
x = 179,143.84
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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.