Finding the Fourth Proportional to 208,814.88, 288,163.80 and 118,161.96
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Solution
The fourth proportional to 208,814.88, 288,163.80 and 118,161.96 is: 163,063.09
Step by Step Solution
- Step 1: Write the proportion equation
208,814.88 : 288,163.80 = 118,161.96 : x - Step 2: Convert to fraction form
208,814.88/288,163.80 = 118,161.96/x - Step 3: Cross multiply
208,814.88x = 288,163.80 × 118,161.96 - Step 4: Simplify right side
208,814.88x = 34,049,999,409.05 - Step 5: Solve for x
x = 34,049,999,409.05/208,814.88 - Step 6: Final answer
x = 163,063.09
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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.