Finding the Fourth Proportional to 311,936.47, 430,473.62 and 168,696.51
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Solution
The fourth proportional to 311,936.47, 430,473.62 and 168,696.51 is: 232,801.88
Step by Step Solution
- Step 1: Write the proportion equation
311,936.47 : 430,473.62 = 168,696.51 : x - Step 2: Convert to fraction form
311,936.47/430,473.62 = 168,696.51/x - Step 3: Cross multiply
311,936.47x = 430,473.62 × 168,696.51 - Step 4: Simplify right side
311,936.47x = 72,619,397,341.07 - Step 5: Solve for x
x = 72,619,397,341.07/311,936.47 - Step 6: Final answer
x = 232,801.88
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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.