Finding the Fourth Proportional to 305,163.31, 421,125.48 and 169,198.87
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Solution
The fourth proportional to 305,163.31, 421,125.48 and 169,198.87 is: 233,494.50
Step by Step Solution
- Step 1: Write the proportion equation
305,163.31 : 421,125.48 = 169,198.87 : x - Step 2: Convert to fraction form
305,163.31/421,125.48 = 169,198.87/x - Step 3: Cross multiply
305,163.31x = 421,125.48 × 169,198.87 - Step 4: Simplify right side
305,163.31x = 71,253,955,344.21 - Step 5: Solve for x
x = 71,253,955,344.21/305,163.31 - Step 6: Final answer
x = 233,494.50
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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.