Finding the Fourth Proportional to 231,166.62, 319,034.97 and 135,687.06
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Solution
The fourth proportional to 231,166.62, 319,034.97 and 135,687.06 is: 187,262.84
Step by Step Solution
- Step 1: Write the proportion equation
231,166.62 : 319,034.97 = 135,687.06 : x - Step 2: Convert to fraction form
231,166.62/319,034.97 = 135,687.06/x - Step 3: Cross multiply
231,166.62x = 319,034.97 × 135,687.06 - Step 4: Simplify right side
231,166.62x = 43,288,917,116.49 - Step 5: Solve for x
x = 43,288,917,116.49/231,166.62 - Step 6: Final answer
x = 187,262.84
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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.