Finding the Fourth Proportional to 281,953.06, 389,115.84 and 161,091.75
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Solution
The fourth proportional to 281,953.06, 389,115.84 and 161,091.75 is: 222,318.39
Step by Step Solution
- Step 1: Write the proportion equation
281,953.06 : 389,115.84 = 161,091.75 : x - Step 2: Convert to fraction form
281,953.06/389,115.84 = 161,091.75/x - Step 3: Cross multiply
281,953.06x = 389,115.84 × 161,091.75 - Step 4: Simplify right side
281,953.06x = 62,683,351,618.32 - Step 5: Solve for x
x = 62,683,351,618.32/281,953.06 - Step 6: Final answer
x = 222,318.39
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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.