Finding the Fourth Proportional to 221,548.96, 305,544.60 and 135,442.72
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Solution
The fourth proportional to 221,548.96, 305,544.60 and 135,442.72 is: 186,792.99
Step by Step Solution
- Step 1: Write the proportion equation
221,548.96 : 305,544.60 = 135,442.72 : x - Step 2: Convert to fraction form
221,548.96/305,544.60 = 135,442.72/x - Step 3: Cross multiply
221,548.96x = 305,544.60 × 135,442.72 - Step 4: Simplify right side
221,548.96x = 41,383,791,705.31 - Step 5: Solve for x
x = 41,383,791,705.31/221,548.96 - Step 6: Final answer
x = 186,792.99
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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.