Finding the Fourth Proportional to 212,561.92, 293,344.50 and 121,943.44
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Solution
The fourth proportional to 212,561.92, 293,344.50 and 121,943.44 is: 168,287.14
Step by Step Solution
- Step 1: Write the proportion equation
212,561.92 : 293,344.50 = 121,943.44 : x - Step 2: Convert to fraction form
212,561.92/293,344.50 = 121,943.44/x - Step 3: Cross multiply
212,561.92x = 293,344.50 × 121,943.44 - Step 4: Simplify right side
212,561.92x = 35,771,437,435.08 - Step 5: Solve for x
x = 35,771,437,435.08/212,561.92 - Step 6: Final answer
x = 168,287.14
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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.