Finding the Fourth Proportional to 209,861.32, 289,604.74 and 114,368.68
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Solution
The fourth proportional to 209,861.32, 289,604.74 and 114,368.68 is: 157,826.66
Step by Step Solution
- Step 1: Write the proportion equation
209,861.32 : 289,604.74 = 114,368.68 : x - Step 2: Convert to fraction form
209,861.32/289,604.74 = 114,368.68/x - Step 3: Cross multiply
209,861.32x = 289,604.74 × 114,368.68 - Step 4: Simplify right side
209,861.32x = 33,121,711,835.54 - Step 5: Solve for x
x = 33,121,711,835.54/209,861.32 - Step 6: Final answer
x = 157,826.66
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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.