Finding the Fourth Proportional to 263,415.38, 363,514.10 and 142,556.63
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Solution
The fourth proportional to 263,415.38, 363,514.10 and 142,556.63 is: 196,728.62
Step by Step Solution
- Step 1: Write the proportion equation
263,415.38 : 363,514.10 = 142,556.63 : x - Step 2: Convert to fraction form
263,415.38/363,514.10 = 142,556.63/x - Step 3: Cross multiply
263,415.38x = 363,514.10 × 142,556.63 - Step 4: Simplify right side
263,415.38x = 51,821,342,523.13 - Step 5: Solve for x
x = 51,821,342,523.13/263,415.38 - Step 6: Final answer
x = 196,728.62
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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.