Finding the Fourth Proportional to 215,749.63, 322,757.20 and 186,481.63
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Solution
The fourth proportional to 215,749.63, 322,757.20 and 186,481.63 is: 278,972.85
Step by Step Solution
- Step 1: Write the proportion equation
215,749.63 : 322,757.20 = 186,481.63 : x - Step 2: Convert to fraction form
215,749.63/322,757.20 = 186,481.63/x - Step 3: Cross multiply
215,749.63x = 322,757.20 × 186,481.63 - Step 4: Simplify right side
215,749.63x = 60,188,288,750.24 - Step 5: Solve for x
x = 60,188,288,750.24/215,749.63 - Step 6: Final answer
x = 278,972.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.