Finding the Fourth Proportional to 221,077.44, 305,092.80 and 120,481.92
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Solution
The fourth proportional to 221,077.44, 305,092.80 and 120,481.92 is: 166,268.28
Step by Step Solution
- Step 1: Write the proportion equation
221,077.44 : 305,092.80 = 120,481.92 : x - Step 2: Convert to fraction form
221,077.44/305,092.80 = 120,481.92/x - Step 3: Cross multiply
221,077.44x = 305,092.80 × 120,481.92 - Step 4: Simplify right side
221,077.44x = 36,758,166,322.18 - Step 5: Solve for x
x = 36,758,166,322.18/221,077.44 - Step 6: Final answer
x = 166,268.28
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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.