Finding the Fourth Proportional to 281,055.49, 421,588.73 and 103,471.09
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Solution
The fourth proportional to 281,055.49, 421,588.73 and 103,471.09 is: 155,208.66
Step by Step Solution
- Step 1: Write the proportion equation
281,055.49 : 421,588.73 = 103,471.09 : x - Step 2: Convert to fraction form
281,055.49/421,588.73 = 103,471.09/x - Step 3: Cross multiply
281,055.49x = 421,588.73 × 103,471.09 - Step 4: Simplify right side
281,055.49x = 43,622,245,424.82 - Step 5: Solve for x
x = 43,622,245,424.82/281,055.49 - Step 6: Final answer
x = 155,208.66
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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.