Finding the Fourth Proportional to 231,476.36, 347,039.82 and 81,651.08
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Solution
The fourth proportional to 231,476.36, 347,039.82 and 81,651.08 is: 122,414.99
Step by Step Solution
- Step 1: Write the proportion equation
231,476.36 : 347,039.82 = 81,651.08 : x - Step 2: Convert to fraction form
231,476.36/347,039.82 = 81,651.08/x - Step 3: Cross multiply
231,476.36x = 347,039.82 × 81,651.08 - Step 4: Simplify right side
231,476.36x = 28,336,176,106.01 - Step 5: Solve for x
x = 28,336,176,106.01/231,476.36 - Step 6: Final answer
x = 122,414.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.