Finding the Fourth Proportional to 328,968.98, 492,330.74 and 275,721.09
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Solution
The fourth proportional to 328,968.98, 492,330.74 and 275,721.09 is: 412,640.63
Step by Step Solution
- Step 1: Write the proportion equation
328,968.98 : 492,330.74 = 275,721.09 : x - Step 2: Convert to fraction form
328,968.98/492,330.74 = 275,721.09/x - Step 3: Cross multiply
328,968.98x = 492,330.74 × 275,721.09 - Step 4: Simplify right side
328,968.98x = 135,745,965,048.46 - Step 5: Solve for x
x = 135,745,965,048.46/328,968.98 - Step 6: Final answer
x = 412,640.63
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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.