Finding the Fourth Proportional to 386,121.23, 532,531.37 and 271,778.39
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Solution
The fourth proportional to 386,121.23, 532,531.37 and 271,778.39 is: 374,831.80
Step by Step Solution
- Step 1: Write the proportion equation
386,121.23 : 532,531.37 = 271,778.39 : x - Step 2: Convert to fraction form
386,121.23/532,531.37 = 271,778.39/x - Step 3: Cross multiply
386,121.23x = 532,531.37 × 271,778.39 - Step 4: Simplify right side
386,121.23x = 144,730,518,335.53 - Step 5: Solve for x
x = 144,730,518,335.53/386,121.23 - Step 6: Final answer
x = 374,831.80
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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.