Finding the Fourth Proportional to 312,212.88, 430,850.16 and 168,969.60
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Solution
The fourth proportional to 312,212.88, 430,850.16 and 168,969.60 is: 233,176.09
Step by Step Solution
- Step 1: Write the proportion equation
312,212.88 : 430,850.16 = 168,969.60 : x - Step 2: Convert to fraction form
312,212.88/430,850.16 = 168,969.60/x - Step 3: Cross multiply
312,212.88x = 430,850.16 × 168,969.60 - Step 4: Simplify right side
312,212.88x = 72,800,579,195.14 - Step 5: Solve for x
x = 72,800,579,195.14/312,212.88 - Step 6: Final answer
x = 233,176.09
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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.