Finding the Fourth Proportional to 643,416.75, 965,190.74 and 222,691.41
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Solution
The fourth proportional to 643,416.75, 965,190.74 and 222,691.41 is: 334,059.82
Step by Step Solution
- Step 1: Write the proportion equation
643,416.75 : 965,190.74 = 222,691.41 : x - Step 2: Convert to fraction form
643,416.75/965,190.74 = 222,691.41/x - Step 3: Cross multiply
643,416.75x = 965,190.74 × 222,691.41 - Step 4: Simplify right side
643,416.75x = 214,939,685,696.09 - Step 5: Solve for x
x = 214,939,685,696.09/643,416.75 - Step 6: Final answer
x = 334,059.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.