Finding the Fourth Proportional to 209,251.44, 288,368.79 and 151,791.66
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Solution
The fourth proportional to 209,251.44, 288,368.79 and 151,791.66 is: 209,183.64
Step by Step Solution
- Step 1: Write the proportion equation
209,251.44 : 288,368.79 = 151,791.66 : x - Step 2: Convert to fraction form
209,251.44/288,368.79 = 151,791.66/x - Step 3: Cross multiply
209,251.44x = 288,368.79 × 151,791.66 - Step 4: Simplify right side
209,251.44x = 43,771,977,326.29 - Step 5: Solve for x
x = 43,771,977,326.29/209,251.44 - Step 6: Final answer
x = 209,183.64
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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.