Finding the Fourth Proportional to 386,375.84, 579,418.15 and 161,751.79
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Solution
The fourth proportional to 386,375.84, 579,418.15 and 161,751.79 is: 242,566.73
Step by Step Solution
- Step 1: Write the proportion equation
386,375.84 : 579,418.15 = 161,751.79 : x - Step 2: Convert to fraction form
386,375.84/579,418.15 = 161,751.79/x - Step 3: Cross multiply
386,375.84x = 579,418.15 × 161,751.79 - Step 4: Simplify right side
386,375.84x = 93,721,922,920.99 - Step 5: Solve for x
x = 93,721,922,920.99/386,375.84 - Step 6: Final answer
x = 242,566.73
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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.