Finding the Fourth Proportional to 206,839.68, 285,438.60 and 117,415.68
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Solution
The fourth proportional to 206,839.68, 285,438.60 and 117,415.68 is: 162,033.55
Step by Step Solution
- Step 1: Write the proportion equation
206,839.68 : 285,438.60 = 117,415.68 : x - Step 2: Convert to fraction form
206,839.68/285,438.60 = 117,415.68/x - Step 3: Cross multiply
206,839.68x = 285,438.60 × 117,415.68 - Step 4: Simplify right side
206,839.68x = 33,514,967,317.25 - Step 5: Solve for x
x = 33,514,967,317.25/206,839.68 - Step 6: Final answer
x = 162,033.55
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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.