Finding the Fourth Proportional to 212,514.63, 293,270.18 and 117,021.09
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Solution
The fourth proportional to 212,514.63, 293,270.18 and 117,021.09 is: 161,489.10
Step by Step Solution
- Step 1: Write the proportion equation
212,514.63 : 293,270.18 = 117,021.09 : x - Step 2: Convert to fraction form
212,514.63/293,270.18 = 117,021.09/x - Step 3: Cross multiply
212,514.63x = 293,270.18 × 117,021.09 - Step 4: Simplify right side
212,514.63x = 34,318,796,128.10 - Step 5: Solve for x
x = 34,318,796,128.10/212,514.63 - Step 6: Final answer
x = 161,489.10
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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.