Finding the Fourth Proportional to 235,450.62, 324,912.90 and 128,020.74
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Solution
The fourth proportional to 235,450.62, 324,912.90 and 128,020.74 is: 176,663.75
Step by Step Solution
- Step 1: Write the proportion equation
235,450.62 : 324,912.90 = 128,020.74 : x - Step 2: Convert to fraction form
235,450.62/324,912.90 = 128,020.74/x - Step 3: Cross multiply
235,450.62x = 324,912.90 × 128,020.74 - Step 4: Simplify right side
235,450.62x = 41,595,589,893.55 - Step 5: Solve for x
x = 41,595,589,893.55/235,450.62 - Step 6: Final answer
x = 176,663.75
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1.5x scale
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.