Finding the Fourth Proportional to 257,201.46, 385,912.41 and 132,629.94
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Solution
The fourth proportional to 257,201.46, 385,912.41 and 132,629.94 is: 199,001.75
Step by Step Solution
- Step 1: Write the proportion equation
257,201.46 : 385,912.41 = 132,629.94 : x - Step 2: Convert to fraction form
257,201.46/385,912.41 = 132,629.94/x - Step 3: Cross multiply
257,201.46x = 385,912.41 × 132,629.94 - Step 4: Simplify right side
257,201.46x = 51,183,539,783.56 - Step 5: Solve for x
x = 51,183,539,783.56/257,201.46 - Step 6: Final answer
x = 199,001.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.