Finding the Fourth Proportional to 198,081.84, 296,615.60 and 109,236.79
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Solution
The fourth proportional to 198,081.84, 296,615.60 and 109,236.79 is: 163,575.50
Step by Step Solution
- Step 1: Write the proportion equation
198,081.84 : 296,615.60 = 109,236.79 : x - Step 2: Convert to fraction form
198,081.84/296,615.60 = 109,236.79/x - Step 3: Cross multiply
198,081.84x = 296,615.60 × 109,236.79 - Step 4: Simplify right side
198,081.84x = 32,401,336,007.92 - Step 5: Solve for x
x = 32,401,336,007.92/198,081.84 - Step 6: Final answer
x = 163,575.50
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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.