Finding the Fourth Proportional to 208,793.18, 288,140.98 and 122,736.37
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Solution
The fourth proportional to 208,793.18, 288,140.98 and 122,736.37 is: 169,379.95
Step by Step Solution
- Step 1: Write the proportion equation
208,793.18 : 288,140.98 = 122,736.37 : x - Step 2: Convert to fraction form
208,793.18/288,140.98 = 122,736.37/x - Step 3: Cross multiply
208,793.18x = 288,140.98 × 122,736.37 - Step 4: Simplify right side
208,793.18x = 35,365,376,906.25 - Step 5: Solve for x
x = 35,365,376,906.25/208,793.18 - Step 6: Final answer
x = 169,379.95
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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.