Finding the Fourth Proportional to 212,939.48, 319,470.78 and 63,183.08
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Solution
The fourth proportional to 212,939.48, 319,470.78 and 63,183.08 is: 94,792.89
Step by Step Solution
- Step 1: Write the proportion equation
212,939.48 : 319,470.78 = 63,183.08 : x - Step 2: Convert to fraction form
212,939.48/319,470.78 = 63,183.08/x - Step 3: Cross multiply
212,939.48x = 319,470.78 × 63,183.08 - Step 4: Simplify right side
212,939.48x = 20,185,147,850.40 - Step 5: Solve for x
x = 20,185,147,850.40/212,939.48 - Step 6: Final answer
x = 94,792.89
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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.