Finding the Fourth Proportional to 282,517.07, 389,876.36 and 155,192.76
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Solution
The fourth proportional to 282,517.07, 389,876.36 and 155,192.76 is: 214,167.55
Step by Step Solution
- Step 1: Write the proportion equation
282,517.07 : 389,876.36 = 155,192.76 : x - Step 2: Convert to fraction form
282,517.07/389,876.36 = 155,192.76/x - Step 3: Cross multiply
282,517.07x = 389,876.36 × 155,192.76 - Step 4: Simplify right side
282,517.07x = 60,505,987,591.19 - Step 5: Solve for x
x = 60,505,987,591.19/282,517.07 - Step 6: Final answer
x = 214,167.55
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1.5x scale
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.