Finding the Fourth Proportional to 317,812.92, 438,222.42 and 202,940.52
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Solution
The fourth proportional to 317,812.92, 438,222.42 and 202,940.52 is: 279,828.42
Step by Step Solution
- Step 1: Write the proportion equation
317,812.92 : 438,222.42 = 202,940.52 : x - Step 2: Convert to fraction form
317,812.92/438,222.42 = 202,940.52/x - Step 3: Cross multiply
317,812.92x = 438,222.42 × 202,940.52 - Step 4: Simplify right side
317,812.92x = 88,933,085,790.46 - Step 5: Solve for x
x = 88,933,085,790.46/317,812.92 - Step 6: Final answer
x = 279,828.42
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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.