Finding the Fourth Proportional to 181,556.78, 250,486.84 and 129,830.18
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Solution
The fourth proportional to 181,556.78, 250,486.84 and 129,830.18 is: 179,121.66
Step by Step Solution
- Step 1: Write the proportion equation
181,556.78 : 250,486.84 = 129,830.18 : x - Step 2: Convert to fraction form
181,556.78/250,486.84 = 129,830.18/x - Step 3: Cross multiply
181,556.78x = 250,486.84 × 129,830.18 - Step 4: Simplify right side
181,556.78x = 32,520,751,524.83 - Step 5: Solve for x
x = 32,520,751,524.83/181,556.78 - Step 6: Final answer
x = 179,121.66
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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.