Finding the Fourth Proportional to 421,935.25, 582,272.51 and 228,342.99
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Solution
The fourth proportional to 421,935.25, 582,272.51 and 228,342.99 is: 315,114.33
Step by Step Solution
- Step 1: Write the proportion equation
421,935.25 : 582,272.51 = 228,342.99 : x - Step 2: Convert to fraction form
421,935.25/582,272.51 = 228,342.99/x - Step 3: Cross multiply
421,935.25x = 582,272.51 × 228,342.99 - Step 4: Simplify right side
421,935.25x = 132,957,845,974.59 - Step 5: Solve for x
x = 132,957,845,974.59/421,935.25 - Step 6: Final answer
x = 315,114.33
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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.