Finding the Fourth Proportional to 208,849.26, 288,212.26 and 113,355.92
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Solution
The fourth proportional to 208,849.26, 288,212.26 and 113,355.92 is: 156,431.32
Step by Step Solution
- Step 1: Write the proportion equation
208,849.26 : 288,212.26 = 113,355.92 : x - Step 2: Convert to fraction form
208,849.26/288,212.26 = 113,355.92/x - Step 3: Cross multiply
208,849.26x = 288,212.26 × 113,355.92 - Step 4: Simplify right side
208,849.26x = 32,670,565,887.58 - Step 5: Solve for x
x = 32,670,565,887.58/208,849.26 - Step 6: Final answer
x = 156,431.32
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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.