Finding the Fourth Proportional to 272,213.60, 408,028.80 and 122,428.40
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Solution
The fourth proportional to 272,213.60, 408,028.80 and 122,428.40 is: 183,511.45
Step by Step Solution
- Step 1: Write the proportion equation
272,213.60 : 408,028.80 = 122,428.40 : x - Step 2: Convert to fraction form
272,213.60/408,028.80 = 122,428.40/x - Step 3: Cross multiply
272,213.60x = 408,028.80 × 122,428.40 - Step 4: Simplify right side
272,213.60x = 49,954,313,137.92 - Step 5: Solve for x
x = 49,954,313,137.92/272,213.60 - Step 6: Final answer
x = 183,511.45
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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.