Finding the Fourth Proportional to 239,131.28, 330,016.09 and 131,701.28
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Solution
The fourth proportional to 239,131.28, 330,016.09 and 131,701.28 is: 181,755.99
Step by Step Solution
- Step 1: Write the proportion equation
239,131.28 : 330,016.09 = 131,701.28 : x - Step 2: Convert to fraction form
239,131.28/330,016.09 = 131,701.28/x - Step 3: Cross multiply
239,131.28x = 330,016.09 × 131,701.28 - Step 4: Simplify right side
239,131.28x = 43,463,541,473.60 - Step 5: Solve for x
x = 43,463,541,473.60/239,131.28 - Step 6: Final answer
x = 181,755.99
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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.