Finding the Fourth Proportional to 212,880.88, 293,768.88 and 117,391.60
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Solution
The fourth proportional to 212,880.88, 293,768.88 and 117,391.60 is: 161,996.69
Step by Step Solution
- Step 1: Write the proportion equation
212,880.88 : 293,768.88 = 117,391.60 : x - Step 2: Convert to fraction form
212,880.88/293,768.88 = 117,391.60/x - Step 3: Cross multiply
212,880.88x = 293,768.88 × 117,391.60 - Step 4: Simplify right side
212,880.88x = 34,485,998,853.41 - Step 5: Solve for x
x = 34,485,998,853.41/212,880.88 - Step 6: Final answer
x = 161,996.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.