Finding the Fourth Proportional to 268,787.18, 370,912.50 and 147,939.94
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Solution
The fourth proportional to 268,787.18, 370,912.50 and 147,939.94 is: 204,149.52
Step by Step Solution
- Step 1: Write the proportion equation
268,787.18 : 370,912.50 = 147,939.94 : x - Step 2: Convert to fraction form
268,787.18/370,912.50 = 147,939.94/x - Step 3: Cross multiply
268,787.18x = 370,912.50 × 147,939.94 - Step 4: Simplify right side
268,787.18x = 54,872,772,995.25 - Step 5: Solve for x
x = 54,872,772,995.25/268,787.18 - Step 6: Final answer
x = 204,149.52
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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.