Finding the Fourth Proportional to 313,872.09, 432,736.92 and 203,293.99
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Solution
The fourth proportional to 313,872.09, 432,736.92 and 203,293.99 is: 280,282.38
Step by Step Solution
- Step 1: Write the proportion equation
313,872.09 : 432,736.92 = 203,293.99 : x - Step 2: Convert to fraction form
313,872.09/432,736.92 = 203,293.99/x - Step 3: Cross multiply
313,872.09x = 432,736.92 × 203,293.99 - Step 4: Simplify right side
313,872.09x = 87,972,815,087.11 - Step 5: Solve for x
x = 87,972,815,087.11/313,872.09 - Step 6: Final answer
x = 280,282.38
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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.