Finding the Fourth Proportional to 239,120.26, 329,983.77 and 131,687.99
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Solution
The fourth proportional to 239,120.26, 329,983.77 and 131,687.99 is: 181,728.22
Step by Step Solution
- Step 1: Write the proportion equation
239,120.26 : 329,983.77 = 131,687.99 : x - Step 2: Convert to fraction form
239,120.26/329,983.77 = 131,687.99/x - Step 3: Cross multiply
239,120.26x = 329,983.77 × 131,687.99 - Step 4: Simplify right side
239,120.26x = 43,454,897,754.00 - Step 5: Solve for x
x = 43,454,897,754.00/239,120.26 - Step 6: Final answer
x = 181,728.22
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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.