Finding the Fourth Proportional to 213,077.19, 319,532.67 and 79,884.75
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Solution
The fourth proportional to 213,077.19, 319,532.67 and 79,884.75 is: 119,795.96
Step by Step Solution
- Step 1: Write the proportion equation
213,077.19 : 319,532.67 = 79,884.75 : x - Step 2: Convert to fraction form
213,077.19/319,532.67 = 79,884.75/x - Step 3: Cross multiply
213,077.19x = 319,532.67 × 79,884.75 - Step 4: Simplify right side
213,077.19x = 25,525,787,459.78 - Step 5: Solve for x
x = 25,525,787,459.78/213,077.19 - Step 6: Final answer
x = 119,795.96
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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.