Finding the Fourth Proportional to 311,867.82, 430,377.84 and 168,627.96
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Solution
The fourth proportional to 311,867.82, 430,377.84 and 168,627.96 is: 232,706.72
Step by Step Solution
- Step 1: Write the proportion equation
311,867.82 : 430,377.84 = 168,627.96 : x - Step 2: Convert to fraction form
311,867.82/430,377.84 = 168,627.96/x - Step 3: Cross multiply
311,867.82x = 430,377.84 × 168,627.96 - Step 4: Simplify right side
311,867.82x = 72,573,737,188.41 - Step 5: Solve for x
x = 72,573,737,188.41/311,867.82 - Step 6: Final answer
x = 232,706.72
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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.