Finding the Fourth Proportional to 394,176.20, 543,963.68 and 224,410.32
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Solution
The fourth proportional to 394,176.20, 543,963.68 and 224,410.32 is: 309,686.54
Step by Step Solution
- Step 1: Write the proportion equation
394,176.20 : 543,963.68 = 224,410.32 : x - Step 2: Convert to fraction form
394,176.20/543,963.68 = 224,410.32/x - Step 3: Cross multiply
394,176.20x = 543,963.68 × 224,410.32 - Step 4: Simplify right side
394,176.20x = 122,071,062,375.13 - Step 5: Solve for x
x = 122,071,062,375.13/394,176.20 - Step 6: Final answer
x = 309,686.54
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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.