Finding the Fourth Proportional to 207,902.97, 286,905.92 and 112,409.44
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Solution
The fourth proportional to 207,902.97, 286,905.92 and 112,409.44 is: 155,124.92
Step by Step Solution
- Step 1: Write the proportion equation
207,902.97 : 286,905.92 = 112,409.44 : x - Step 2: Convert to fraction form
207,902.97/286,905.92 = 112,409.44/x - Step 3: Cross multiply
207,902.97x = 286,905.92 × 112,409.44 - Step 4: Simplify right side
207,902.97x = 32,250,932,520.57 - Step 5: Solve for x
x = 32,250,932,520.57/207,902.97 - Step 6: Final answer
x = 155,124.92
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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.