Finding the Fourth Proportional to 209,162.02, 288,645.41 and 113,668.70
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Solution
The fourth proportional to 209,162.02, 288,645.41 and 113,668.70 is: 156,863.80
Step by Step Solution
- Step 1: Write the proportion equation
209,162.02 : 288,645.41 = 113,668.70 : x - Step 2: Convert to fraction form
209,162.02/288,645.41 = 113,668.70/x - Step 3: Cross multiply
209,162.02x = 288,645.41 × 113,668.70 - Step 4: Simplify right side
209,162.02x = 32,809,947,947.32 - Step 5: Solve for x
x = 32,809,947,947.32/209,162.02 - Step 6: Final answer
x = 156,863.80
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1.5x scale
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.