Finding the Fourth Proportional to 231,063.49, 318,882.57 and 129,089.49
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Solution
The fourth proportional to 231,063.49, 318,882.57 and 129,089.49 is: 178,151.86
Step by Step Solution
- Step 1: Write the proportion equation
231,063.49 : 318,882.57 = 129,089.49 : x - Step 2: Convert to fraction form
231,063.49/318,882.57 = 129,089.49/x - Step 3: Cross multiply
231,063.49x = 318,882.57 × 129,089.49 - Step 4: Simplify right side
231,063.49x = 41,164,389,451.12 - Step 5: Solve for x
x = 41,164,389,451.12/231,063.49 - Step 6: Final answer
x = 178,151.86
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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.