Finding the Fourth Proportional to 208,906.37, 288,291.97 and 122,868.98
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Solution
The fourth proportional to 208,906.37, 288,291.97 and 122,868.98 is: 169,559.89
Step by Step Solution
- Step 1: Write the proportion equation
208,906.37 : 288,291.97 = 122,868.98 : x - Step 2: Convert to fraction form
208,906.37/288,291.97 = 122,868.98/x - Step 3: Cross multiply
208,906.37x = 288,291.97 × 122,868.98 - Step 4: Simplify right side
208,906.37x = 35,422,140,296.09 - Step 5: Solve for x
x = 35,422,140,296.09/208,906.37 - Step 6: Final answer
x = 169,559.89
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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.