Finding the Fourth Proportional to 292,276.40, 438,414.60 and 274,561.70
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Solution
The fourth proportional to 292,276.40, 438,414.60 and 274,561.70 is: 411,842.55
Step by Step Solution
- Step 1: Write the proportion equation
292,276.40 : 438,414.60 = 274,561.70 : x - Step 2: Convert to fraction form
292,276.40/438,414.60 = 274,561.70/x - Step 3: Cross multiply
292,276.40x = 438,414.60 × 274,561.70 - Step 4: Simplify right side
292,276.40x = 120,371,857,880.82 - Step 5: Solve for x
x = 120,371,857,880.82/292,276.40 - Step 6: Final answer
x = 411,842.55
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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.