Finding the Fourth Proportional to 192,516.75, 288,891.77 and 81,708.75
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Solution
The fourth proportional to 192,516.75, 288,891.77 and 81,708.75 is: 122,612.63
Step by Step Solution
- Step 1: Write the proportion equation
192,516.75 : 288,891.77 = 81,708.75 : x - Step 2: Convert to fraction form
192,516.75/288,891.77 = 81,708.75/x - Step 3: Cross multiply
192,516.75x = 288,891.77 × 81,708.75 - Step 4: Simplify right side
192,516.75x = 23,604,985,003.44 - Step 5: Solve for x
x = 23,604,985,003.44/192,516.75 - Step 6: Final answer
x = 122,612.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.