Finding the Fourth Proportional to 386,722.44, 533,677.22 and 214,640.47
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Solution
The fourth proportional to 386,722.44, 533,677.22 and 214,640.47 is: 296,203.99
Step by Step Solution
- Step 1: Write the proportion equation
386,722.44 : 533,677.22 = 214,640.47 : x - Step 2: Convert to fraction form
386,722.44/533,677.22 = 214,640.47/x - Step 3: Cross multiply
386,722.44x = 533,677.22 × 214,640.47 - Step 4: Simplify right side
386,722.44x = 114,548,729,329.09 - Step 5: Solve for x
x = 114,548,729,329.09/386,722.44 - Step 6: Final answer
x = 296,203.99
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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.