Finding the Fourth Proportional to 312,183.24, 430,812.84 and 168,943.26
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Solution
The fourth proportional to 312,183.24, 430,812.84 and 168,943.26 is: 233,141.68
Step by Step Solution
- Step 1: Write the proportion equation
312,183.24 : 430,812.84 = 168,943.26 : x - Step 2: Convert to fraction form
312,183.24/430,812.84 = 168,943.26/x - Step 3: Cross multiply
312,183.24x = 430,812.84 × 168,943.26 - Step 4: Simplify right side
312,183.24x = 72,782,925,639.46 - Step 5: Solve for x
x = 72,782,925,639.46/312,183.24 - Step 6: Final answer
x = 233,141.68
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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.