Finding the Fourth Proportional to 214,504.09, 321,629.97 and 81,393.70
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Solution
The fourth proportional to 214,504.09, 321,629.97 and 81,393.70 is: 122,042.68
Step by Step Solution
- Step 1: Write the proportion equation
214,504.09 : 321,629.97 = 81,393.70 : x - Step 2: Convert to fraction form
214,504.09/321,629.97 = 81,393.70/x - Step 3: Cross multiply
214,504.09x = 321,629.97 × 81,393.70 - Step 4: Simplify right side
214,504.09x = 26,178,653,686.30 - Step 5: Solve for x
x = 26,178,653,686.30/214,504.09 - Step 6: Final answer
x = 122,042.68
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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.