Finding the Fourth Proportional to 218,236.42, 301,163.36 and 122,743.12
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Solution
The fourth proportional to 218,236.42, 301,163.36 and 122,743.12 is: 169,383.87
Step by Step Solution
- Step 1: Write the proportion equation
218,236.42 : 301,163.36 = 122,743.12 : x - Step 2: Convert to fraction form
218,236.42/301,163.36 = 122,743.12/x - Step 3: Cross multiply
218,236.42x = 301,163.36 × 122,743.12 - Step 4: Simplify right side
218,236.42x = 36,965,729,179.49 - Step 5: Solve for x
x = 36,965,729,179.49/218,236.42 - Step 6: Final answer
x = 169,383.87
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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.