Finding the Fourth Proportional to 231,668.29, 319,537.39 and 212,609.62
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Solution
The fourth proportional to 231,668.29, 319,537.39 and 212,609.62 is: 293,249.99
Step by Step Solution
- Step 1: Write the proportion equation
231,668.29 : 319,537.39 = 212,609.62 : x - Step 2: Convert to fraction form
231,668.29/319,537.39 = 212,609.62/x - Step 3: Cross multiply
231,668.29x = 319,537.39 × 212,609.62 - Step 4: Simplify right side
231,668.29x = 67,936,722,431.53 - Step 5: Solve for x
x = 67,936,722,431.53/231,668.29 - Step 6: Final answer
x = 293,249.99
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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.