Finding the Fourth Proportional to 212,942.75, 293,860.42 and 122,304.59
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Solution
The fourth proportional to 212,942.75, 293,860.42 and 122,304.59 is: 168,780.01
Step by Step Solution
- Step 1: Write the proportion equation
212,942.75 : 293,860.42 = 122,304.59 : x - Step 2: Convert to fraction form
212,942.75/293,860.42 = 122,304.59/x - Step 3: Cross multiply
212,942.75x = 293,860.42 × 122,304.59 - Step 4: Simplify right side
212,942.75x = 35,940,478,200.20 - Step 5: Solve for x
x = 35,940,478,200.20/212,942.75 - Step 6: Final answer
x = 168,780.01
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1.5x scale
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.