Finding the Fourth Proportional to 221,451.92, 305,604.60 and 120,852.08
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Solution
The fourth proportional to 221,451.92, 305,604.60 and 120,852.08 is: 166,776.39
Step by Step Solution
- Step 1: Write the proportion equation
221,451.92 : 305,604.60 = 120,852.08 : x - Step 2: Convert to fraction form
221,451.92/305,604.60 = 120,852.08/x - Step 3: Cross multiply
221,451.92x = 305,604.60 × 120,852.08 - Step 4: Simplify right side
221,451.92x = 36,932,951,567.57 - Step 5: Solve for x
x = 36,932,951,567.57/221,451.92 - Step 6: Final answer
x = 166,776.39
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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.