Finding the Fourth Proportional to 312,201.75, 430,838.42 and 168,962.84
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Solution
The fourth proportional to 312,201.75, 430,838.42 and 168,962.84 is: 233,168.71
Step by Step Solution
- Step 1: Write the proportion equation
312,201.75 : 430,838.42 = 168,962.84 : x - Step 2: Convert to fraction form
312,201.75/430,838.42 = 168,962.84/x - Step 3: Cross multiply
312,201.75x = 430,838.42 × 168,962.84 - Step 4: Simplify right side
312,201.75x = 72,795,680,025.31 - Step 5: Solve for x
x = 72,795,680,025.31/312,201.75 - Step 6: Final answer
x = 233,168.71
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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.