Finding the Fourth Proportional to 203,821.80, 281,076.12 and 158,419.68
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Solution
The fourth proportional to 203,821.80, 281,076.12 and 158,419.68 is: 218,465.29
Step by Step Solution
- Step 1: Write the proportion equation
203,821.80 : 281,076.12 = 158,419.68 : x - Step 2: Convert to fraction form
203,821.80/281,076.12 = 158,419.68/x - Step 3: Cross multiply
203,821.80x = 281,076.12 × 158,419.68 - Step 4: Simplify right side
203,821.80x = 44,527,988,986.04 - Step 5: Solve for x
x = 44,527,988,986.04/203,821.80 - Step 6: Final answer
x = 218,465.29
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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.