Finding the Fourth Proportional to 512,163.70, 768,245.55 and 245,787.10
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Solution
The fourth proportional to 512,163.70, 768,245.55 and 245,787.10 is: 368,680.65
Step by Step Solution
- Step 1: Write the proportion equation
512,163.70 : 768,245.55 = 245,787.10 : x - Step 2: Convert to fraction form
512,163.70/768,245.55 = 245,787.10/x - Step 3: Cross multiply
512,163.70x = 768,245.55 × 245,787.10 - Step 4: Simplify right side
512,163.70x = 188,824,845,822.41 - Step 5: Solve for x
x = 188,824,845,822.41/512,163.70 - Step 6: Final answer
x = 368,680.65
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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.