Finding the Fourth Proportional to 392,979.44, 542,311.52 and 214,131.44
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Solution
The fourth proportional to 392,979.44, 542,311.52 and 214,131.44 is: 295,501.33
Step by Step Solution
- Step 1: Write the proportion equation
392,979.44 : 542,311.52 = 214,131.44 : x - Step 2: Convert to fraction form
392,979.44/542,311.52 = 214,131.44/x - Step 3: Cross multiply
392,979.44x = 542,311.52 × 214,131.44 - Step 4: Simplify right side
392,979.44x = 116,125,946,706.19 - Step 5: Solve for x
x = 116,125,946,706.19/392,979.44 - Step 6: Final answer
x = 295,501.33
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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.