Finding the Fourth Proportional to 221,576.44, 305,773.86 and 120,974.44
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Solution
The fourth proportional to 221,576.44, 305,773.86 and 120,974.44 is: 166,943.84
Step by Step Solution
- Step 1: Write the proportion equation
221,576.44 : 305,773.86 = 120,974.44 : x - Step 2: Convert to fraction form
221,576.44/305,773.86 = 120,974.44/x - Step 3: Cross multiply
221,576.44x = 305,773.86 × 120,974.44 - Step 4: Simplify right side
221,576.44x = 36,990,821,480.14 - Step 5: Solve for x
x = 36,990,821,480.14/221,576.44 - Step 6: Final answer
x = 166,943.84
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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.