Finding the Fourth Proportional to 276,965.40, 382,212.42 and 149,640.96
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Solution
The fourth proportional to 276,965.40, 382,212.42 and 149,640.96 is: 206,504.62
Step by Step Solution
- Step 1: Write the proportion equation
276,965.40 : 382,212.42 = 149,640.96 : x - Step 2: Convert to fraction form
276,965.40/382,212.42 = 149,640.96/x - Step 3: Cross multiply
276,965.40x = 382,212.42 × 149,640.96 - Step 4: Simplify right side
276,965.40x = 57,194,633,452.72 - Step 5: Solve for x
x = 57,194,633,452.72/276,965.40 - Step 6: Final answer
x = 206,504.62
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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.