Finding the Fourth Proportional to 256,234.56, 384,586.22 and 129,961.99
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Solution
The fourth proportional to 256,234.56, 384,586.22 and 129,961.99 is: 195,061.86
Step by Step Solution
- Step 1: Write the proportion equation
256,234.56 : 384,586.22 = 129,961.99 : x - Step 2: Convert to fraction form
256,234.56/384,586.22 = 129,961.99/x - Step 3: Cross multiply
256,234.56x = 384,586.22 × 129,961.99 - Step 4: Simplify right side
256,234.56x = 49,981,590,477.78 - Step 5: Solve for x
x = 49,981,590,477.78/256,234.56 - Step 6: Final answer
x = 195,061.86
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1.5x scale
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.