Finding the Fourth Proportional to 212,805.66, 293,672.70 and 117,310.26
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Solution
The fourth proportional to 212,805.66, 293,672.70 and 117,310.26 is: 161,888.65
Step by Step Solution
- Step 1: Write the proportion equation
212,805.66 : 293,672.70 = 117,310.26 : x - Step 2: Convert to fraction form
212,805.66/293,672.70 = 117,310.26/x - Step 3: Cross multiply
212,805.66x = 293,672.70 × 117,310.26 - Step 4: Simplify right side
212,805.66x = 34,450,820,791.90 - Step 5: Solve for x
x = 34,450,820,791.90/212,805.66 - Step 6: Final answer
x = 161,888.65
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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.