Finding the Fourth Proportional to 239,212.85, 330,122.18 and 131,791.05
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Solution
The fourth proportional to 239,212.85, 330,122.18 and 131,791.05 is: 181,876.31
Step by Step Solution
- Step 1: Write the proportion equation
239,212.85 : 330,122.18 = 131,791.05 : x - Step 2: Convert to fraction form
239,212.85/330,122.18 = 131,791.05/x - Step 3: Cross multiply
239,212.85x = 330,122.18 × 131,791.05 - Step 4: Simplify right side
239,212.85x = 43,507,149,059.97 - Step 5: Solve for x
x = 43,507,149,059.97/239,212.85 - Step 6: Final answer
x = 181,876.31
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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.