Finding the Fourth Proportional to 207,975.50, 311,831.00 and 87,969.68
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Solution
The fourth proportional to 207,975.50, 311,831.00 and 87,969.68 is: 131,898.59
Step by Step Solution
- Step 1: Write the proportion equation
207,975.50 : 311,831.00 = 87,969.68 : x - Step 2: Convert to fraction form
207,975.50/311,831.00 = 87,969.68/x - Step 3: Cross multiply
207,975.50x = 311,831.00 × 87,969.68 - Step 4: Simplify right side
207,975.50x = 27,431,674,470.99 - Step 5: Solve for x
x = 27,431,674,470.99/207,975.50 - Step 6: Final answer
x = 131,898.59
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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.