Finding the Fourth Proportional to 209,071.21, 288,520.73 and 113,579.41
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Solution
The fourth proportional to 209,071.21, 288,520.73 and 113,579.41 is: 156,740.92
Step by Step Solution
- Step 1: Write the proportion equation
209,071.21 : 288,520.73 = 113,579.41 : x - Step 2: Convert to fraction form
209,071.21/288,520.73 = 113,579.41/x - Step 3: Cross multiply
209,071.21x = 288,520.73 × 113,579.41 - Step 4: Simplify right side
209,071.21x = 32,770,014,286.17 - Step 5: Solve for x
x = 32,770,014,286.17/209,071.21 - Step 6: Final answer
x = 156,740.92
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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.