Finding the Fourth Proportional to 462,664.40, 638,230.68 and 281,431.76
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Solution
The fourth proportional to 462,664.40, 638,230.68 and 281,431.76 is: 388,226.07
Step by Step Solution
- Step 1: Write the proportion equation
462,664.40 : 638,230.68 = 281,431.76 : x - Step 2: Convert to fraction form
462,664.40/638,230.68 = 281,431.76/x - Step 3: Cross multiply
462,664.40x = 638,230.68 × 281,431.76 - Step 4: Simplify right side
462,664.40x = 179,618,383,558.40 - Step 5: Solve for x
x = 179,618,383,558.40/462,664.40 - Step 6: Final answer
x = 388,226.07
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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.