Finding the Fourth Proportional to 256,021.21, 383,912.95 and 149,435.94
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Solution
The fourth proportional to 256,021.21, 383,912.95 and 149,435.94 is: 224,084.53
Step by Step Solution
- Step 1: Write the proportion equation
256,021.21 : 383,912.95 = 149,435.94 : x - Step 2: Convert to fraction form
256,021.21/383,912.95 = 149,435.94/x - Step 3: Cross multiply
256,021.21x = 383,912.95 × 149,435.94 - Step 4: Simplify right side
256,021.21x = 57,370,392,561.42 - Step 5: Solve for x
x = 57,370,392,561.42/256,021.21 - Step 6: Final answer
x = 224,084.53
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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.