Finding the Fourth Proportional to 347,939.24, 480,390.08 and 217,315.92
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Solution
The fourth proportional to 347,939.24, 480,390.08 and 217,315.92 is: 300,042.08
Step by Step Solution
- Step 1: Write the proportion equation
347,939.24 : 480,390.08 = 217,315.92 : x - Step 2: Convert to fraction form
347,939.24/480,390.08 = 217,315.92/x - Step 3: Cross multiply
347,939.24x = 480,390.08 × 217,315.92 - Step 4: Simplify right side
347,939.24x = 104,396,412,194.07 - Step 5: Solve for x
x = 104,396,412,194.07/347,939.24 - Step 6: Final answer
x = 300,042.08
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1.5x scale
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.