Finding the Fourth Proportional to 437,531.20, 656,296.80 and 259,946.80
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Solution
The fourth proportional to 437,531.20, 656,296.80 and 259,946.80 is: 389,920.20
Step by Step Solution
- Step 1: Write the proportion equation
437,531.20 : 656,296.80 = 259,946.80 : x - Step 2: Convert to fraction form
437,531.20/656,296.80 = 259,946.80/x - Step 3: Cross multiply
437,531.20x = 656,296.80 × 259,946.80 - Step 4: Simplify right side
437,531.20x = 170,602,253,010.24 - Step 5: Solve for x
x = 170,602,253,010.24/437,531.20 - Step 6: Final answer
x = 389,920.20
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1.5x scale
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.