Finding the Fourth Proportional to 239,216.96, 330,121.91 and 131,790.85
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Solution
The fourth proportional to 239,216.96, 330,121.91 and 131,790.85 is: 181,872.75
Step by Step Solution
- Step 1: Write the proportion equation
239,216.96 : 330,121.91 = 131,790.85 : x - Step 2: Convert to fraction form
239,216.96/330,121.91 = 131,790.85/x - Step 3: Cross multiply
239,216.96x = 330,121.91 × 131,790.85 - Step 4: Simplify right side
239,216.96x = 43,507,046,626.70 - Step 5: Solve for x
x = 43,507,046,626.70/239,216.96 - Step 6: Final answer
x = 181,872.75
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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.