Finding the Fourth Proportional to 311,760.37, 430,229.12 and 168,520.41
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Solution
The fourth proportional to 311,760.37, 430,229.12 and 168,520.41 is: 232,558.07
Step by Step Solution
- Step 1: Write the proportion equation
311,760.37 : 430,229.12 = 168,520.41 : x - Step 2: Convert to fraction form
311,760.37/430,229.12 = 168,520.41/x - Step 3: Cross multiply
311,760.37x = 430,229.12 × 168,520.41 - Step 4: Simplify right side
311,760.37x = 72,502,387,801.66 - Step 5: Solve for x
x = 72,502,387,801.66/311,760.37 - Step 6: Final answer
x = 232,558.07
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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.