Finding the Fourth Proportional to 207,509.29, 311,543.79 and 132,775.31
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Solution
The fourth proportional to 207,509.29, 311,543.79 and 132,775.31 is: 199,342.03
Step by Step Solution
- Step 1: Write the proportion equation
207,509.29 : 311,543.79 = 132,775.31 : x - Step 2: Convert to fraction form
207,509.29/311,543.79 = 132,775.31/x - Step 3: Cross multiply
207,509.29x = 311,543.79 × 132,775.31 - Step 4: Simplify right side
207,509.29x = 41,365,323,576.78 - Step 5: Solve for x
x = 41,365,323,576.78/207,509.29 - Step 6: Final answer
x = 199,342.03
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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.