Finding the Fourth Proportional to 228,436.75, 315,198.97 and 147,853.09
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Solution
The fourth proportional to 228,436.75, 315,198.97 and 147,853.09 is: 204,008.95
Step by Step Solution
- Step 1: Write the proportion equation
228,436.75 : 315,198.97 = 147,853.09 : x - Step 2: Convert to fraction form
228,436.75/315,198.97 = 147,853.09/x - Step 3: Cross multiply
228,436.75x = 315,198.97 × 147,853.09 - Step 4: Simplify right side
228,436.75x = 46,603,141,679.32 - Step 5: Solve for x
x = 46,603,141,679.32/228,436.75 - Step 6: Final answer
x = 204,008.95
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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.