Finding the Fourth Proportional to 209,135.67, 288,608.81 and 113,642.88
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Solution
The fourth proportional to 209,135.67, 288,608.81 and 113,642.88 is: 156,828.03
Step by Step Solution
- Step 1: Write the proportion equation
209,135.67 : 288,608.81 = 113,642.88 : x - Step 2: Convert to fraction form
209,135.67/288,608.81 = 113,642.88/x - Step 3: Cross multiply
209,135.67x = 288,608.81 × 113,642.88 - Step 4: Simplify right side
209,135.67x = 32,798,335,640.25 - Step 5: Solve for x
x = 32,798,335,640.25/209,135.67 - Step 6: Final answer
x = 156,828.03
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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.