Finding the Fourth Proportional to 285,891.80, 394,577.93 and 158,608.40
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Solution
The fourth proportional to 285,891.80, 394,577.93 and 158,608.40 is: 218,905.80
Step by Step Solution
- Step 1: Write the proportion equation
285,891.80 : 394,577.93 = 158,608.40 : x - Step 2: Convert to fraction form
285,891.80/394,577.93 = 158,608.40/x - Step 3: Cross multiply
285,891.80x = 394,577.93 × 158,608.40 - Step 4: Simplify right side
285,891.80x = 62,583,372,576.24 - Step 5: Solve for x
x = 62,583,372,576.24/285,891.80 - Step 6: Final answer
x = 218,905.80
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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.