Finding the Fourth Proportional to 207,904.05, 311,418.68 and 172,912.05
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Solution
The fourth proportional to 207,904.05, 311,418.68 and 172,912.05 is: 259,004.29
Step by Step Solution
- Step 1: Write the proportion equation
207,904.05 : 311,418.68 = 172,912.05 : x - Step 2: Convert to fraction form
207,904.05/311,418.68 = 172,912.05/x - Step 3: Cross multiply
207,904.05x = 311,418.68 × 172,912.05 - Step 4: Simplify right side
207,904.05x = 53,848,041,502.53 - Step 5: Solve for x
x = 53,848,041,502.53/207,904.05 - Step 6: Final answer
x = 259,004.29
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.