Finding the Fourth Proportional to 216,630.20, 325,105.01 and 102,778.49
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Solution
The fourth proportional to 216,630.20, 325,105.01 and 102,778.49 is: 154,243.50
Step by Step Solution
- Step 1: Write the proportion equation
216,630.20 : 325,105.01 = 102,778.49 : x - Step 2: Convert to fraction form
216,630.20/325,105.01 = 102,778.49/x - Step 3: Cross multiply
216,630.20x = 325,105.01 × 102,778.49 - Step 4: Simplify right side
216,630.20x = 33,413,799,879.82 - Step 5: Solve for x
x = 33,413,799,879.82/216,630.20 - Step 6: Final answer
x = 154,243.50
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1.5x scale
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.