Finding the Fourth Proportional to 202,738.40, 279,816.96 and 117,867.68
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Solution
The fourth proportional to 202,738.40, 279,816.96 and 117,867.68 is: 162,679.47
Step by Step Solution
- Step 1: Write the proportion equation
202,738.40 : 279,816.96 = 117,867.68 : x - Step 2: Convert to fraction form
202,738.40/279,816.96 = 117,867.68/x - Step 3: Cross multiply
202,738.40x = 279,816.96 × 117,867.68 - Step 4: Simplify right side
202,738.40x = 32,981,375,899.85 - Step 5: Solve for x
x = 32,981,375,899.85/202,738.40 - Step 6: Final answer
x = 162,679.47
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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.