Finding the Fourth Proportional to 209,452.05, 289,035.19 and 113,959.12
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Solution
The fourth proportional to 209,452.05, 289,035.19 and 113,959.12 is: 157,258.89
Step by Step Solution
- Step 1: Write the proportion equation
209,452.05 : 289,035.19 = 113,959.12 : x - Step 2: Convert to fraction form
209,452.05/289,035.19 = 113,959.12/x - Step 3: Cross multiply
209,452.05x = 289,035.19 × 113,959.12 - Step 4: Simplify right side
209,452.05x = 32,938,195,616.54 - Step 5: Solve for x
x = 32,938,195,616.54/209,452.05 - Step 6: Final answer
x = 157,258.89
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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.