Finding the Fourth Proportional to 394,179.96, 543,968.84 and 224,414.08
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Solution
The fourth proportional to 394,179.96, 543,968.84 and 224,414.08 is: 309,691.71
Step by Step Solution
- Step 1: Write the proportion equation
394,179.96 : 543,968.84 = 224,414.08 : x - Step 2: Convert to fraction form
394,179.96/543,968.84 = 224,414.08/x - Step 3: Cross multiply
394,179.96x = 543,968.84 × 224,414.08 - Step 4: Simplify right side
394,179.96x = 122,074,266,777.27 - Step 5: Solve for x
x = 122,074,266,777.27/394,179.96 - Step 6: Final answer
x = 309,691.71
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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.