Finding the Fourth Proportional to 209,482.19, 289,082.99 and 113,987.24
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Solution
The fourth proportional to 209,482.19, 289,082.99 and 113,987.24 is: 157,301.07
Step by Step Solution
- Step 1: Write the proportion equation
209,482.19 : 289,082.99 = 113,987.24 : x - Step 2: Convert to fraction form
209,482.19/289,082.99 = 113,987.24/x - Step 3: Cross multiply
209,482.19x = 289,082.99 × 113,987.24 - Step 4: Simplify right side
209,482.19x = 32,951,772,161.05 - Step 5: Solve for x
x = 32,951,772,161.05/209,482.19 - Step 6: Final answer
x = 157,301.07
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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.