Finding the Fourth Proportional to 203,817.80, 281,070.60 and 158,415.68
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Solution
The fourth proportional to 203,817.80, 281,070.60 and 158,415.68 is: 218,459.77
Step by Step Solution
- Step 1: Write the proportion equation
203,817.80 : 281,070.60 = 158,415.68 : x - Step 2: Convert to fraction form
203,817.80/281,070.60 = 158,415.68/x - Step 3: Cross multiply
203,817.80x = 281,070.60 × 158,415.68 - Step 4: Simplify right side
203,817.80x = 44,525,990,227.01 - Step 5: Solve for x
x = 44,525,990,227.01/203,817.80 - Step 6: Final answer
x = 218,459.77
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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.