Finding the Fourth Proportional to 239,302.38, 330,239.45 and 131,876.26
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Solution
The fourth proportional to 239,302.38, 330,239.45 and 131,876.26 is: 181,990.43
Step by Step Solution
- Step 1: Write the proportion equation
239,302.38 : 330,239.45 = 131,876.26 : x - Step 2: Convert to fraction form
239,302.38/330,239.45 = 131,876.26/x - Step 3: Cross multiply
239,302.38x = 330,239.45 × 131,876.26 - Step 4: Simplify right side
239,302.38x = 43,550,743,570.46 - Step 5: Solve for x
x = 43,550,743,570.46/239,302.38 - Step 6: Final answer
x = 181,990.43
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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.