Finding the Fourth Proportional to 252,163.71, 378,245.84 and 145,709.73
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Solution
The fourth proportional to 252,163.71, 378,245.84 and 145,709.73 is: 218,564.75
Step by Step Solution
- Step 1: Write the proportion equation
252,163.71 : 378,245.84 = 145,709.73 : x - Step 2: Convert to fraction form
252,163.71/378,245.84 = 145,709.73/x - Step 3: Cross multiply
252,163.71x = 378,245.84 × 145,709.73 - Step 4: Simplify right side
252,163.71x = 55,114,098,491.47 - Step 5: Solve for x
x = 55,114,098,491.47/252,163.71 - Step 6: Final answer
x = 218,564.75
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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.