Finding the Fourth Proportional to 211,405.98, 291,738.03 and 115,912.44
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Solution
The fourth proportional to 211,405.98, 291,738.03 and 115,912.44 is: 159,957.95
Step by Step Solution
- Step 1: Write the proportion equation
211,405.98 : 291,738.03 = 115,912.44 : x - Step 2: Convert to fraction form
211,405.98/291,738.03 = 115,912.44/x - Step 3: Cross multiply
211,405.98x = 291,738.03 × 115,912.44 - Step 4: Simplify right side
211,405.98x = 33,816,066,898.09 - Step 5: Solve for x
x = 33,816,066,898.09/211,405.98 - Step 6: Final answer
x = 159,957.95
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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.