Finding the Fourth Proportional to 203,509.70, 280,824.57 and 112,863.99
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Solution
The fourth proportional to 203,509.70, 280,824.57 and 112,863.99 is: 155,741.87
Step by Step Solution
- Step 1: Write the proportion equation
203,509.70 : 280,824.57 = 112,863.99 : x - Step 2: Convert to fraction form
203,509.70/280,824.57 = 112,863.99/x - Step 3: Cross multiply
203,509.70x = 280,824.57 × 112,863.99 - Step 4: Simplify right side
203,509.70x = 31,694,981,460.23 - Step 5: Solve for x
x = 31,694,981,460.23/203,509.70 - Step 6: Final answer
x = 155,741.87
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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.