Finding the Fourth Proportional to 261,839.41, 393,350.36 and 155,293.26
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Solution
The fourth proportional to 261,839.41, 393,350.36 and 155,293.26 is: 233,290.56
Step by Step Solution
- Step 1: Write the proportion equation
261,839.41 : 393,350.36 = 155,293.26 : x - Step 2: Convert to fraction form
261,839.41/393,350.36 = 155,293.26/x - Step 3: Cross multiply
261,839.41x = 393,350.36 × 155,293.26 - Step 4: Simplify right side
261,839.41x = 61,084,661,187.99 - Step 5: Solve for x
x = 61,084,661,187.99/261,839.41 - Step 6: Final answer
x = 233,290.56
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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.