Finding the Fourth Proportional to 276,608.72, 381,757.12 and 161,922.44
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Solution
The fourth proportional to 276,608.72, 381,757.12 and 161,922.44 is: 223,474.67
Step by Step Solution
- Step 1: Write the proportion equation
276,608.72 : 381,757.12 = 161,922.44 : x - Step 2: Convert to fraction form
276,608.72/381,757.12 = 161,922.44/x - Step 3: Cross multiply
276,608.72x = 381,757.12 × 161,922.44 - Step 4: Simplify right side
276,608.72x = 61,815,042,044.18 - Step 5: Solve for x
x = 61,815,042,044.18/276,608.72 - Step 6: Final answer
x = 223,474.67
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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.