Finding the Fourth Proportional to 216,467.77, 298,738.79 and 120,982.09
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Solution
The fourth proportional to 216,467.77, 298,738.79 and 120,982.09 is: 166,962.70
Step by Step Solution
- Step 1: Write the proportion equation
216,467.77 : 298,738.79 = 120,982.09 : x - Step 2: Convert to fraction form
216,467.77/298,738.79 = 120,982.09/x - Step 3: Cross multiply
216,467.77x = 298,738.79 × 120,982.09 - Step 4: Simplify right side
216,467.77x = 36,142,042,573.36 - Step 5: Solve for x
x = 36,142,042,573.36/216,467.77 - Step 6: Final answer
x = 166,962.70
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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.