Finding the Fourth Proportional to 209,388.05, 289,117.70 and 160,913.19
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Solution
The fourth proportional to 209,388.05, 289,117.70 and 160,913.19 is: 222,184.84
Step by Step Solution
- Step 1: Write the proportion equation
209,388.05 : 289,117.70 = 160,913.19 : x - Step 2: Convert to fraction form
209,388.05/289,117.70 = 160,913.19/x - Step 3: Cross multiply
209,388.05x = 289,117.70 × 160,913.19 - Step 4: Simplify right side
209,388.05x = 46,522,851,392.46 - Step 5: Solve for x
x = 46,522,851,392.46/209,388.05 - Step 6: Final answer
x = 222,184.84
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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.