Finding the Fourth Proportional to 305,194.56, 421,169.40 and 169,238.09
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Solution
The fourth proportional to 305,194.56, 421,169.40 and 169,238.09 is: 233,549.06
Step by Step Solution
- Step 1: Write the proportion equation
305,194.56 : 421,169.40 = 169,238.09 : x - Step 2: Convert to fraction form
305,194.56/421,169.40 = 169,238.09/x - Step 3: Cross multiply
305,194.56x = 421,169.40 × 169,238.09 - Step 4: Simplify right side
305,194.56x = 71,277,902,716.60 - Step 5: Solve for x
x = 71,277,902,716.60/305,194.56 - Step 6: Final answer
x = 233,549.06
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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.