Finding the Fourth Proportional to 198,782.62, 298,110.33 and 65,638.06
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Solution
The fourth proportional to 198,782.62, 298,110.33 and 65,638.06 is: 98,436.09
Step by Step Solution
- Step 1: Write the proportion equation
198,782.62 : 298,110.33 = 65,638.06 : x - Step 2: Convert to fraction form
198,782.62/298,110.33 = 65,638.06/x - Step 3: Cross multiply
198,782.62x = 298,110.33 × 65,638.06 - Step 4: Simplify right side
198,782.62x = 19,567,382,981.88 - Step 5: Solve for x
x = 19,567,382,981.88/198,782.62 - Step 6: Final answer
x = 98,436.09
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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.