Finding the Fourth Proportional to 379,293.98, 523,381.11 and 209,517.98
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Solution
The fourth proportional to 379,293.98, 523,381.11 and 209,517.98 is: 289,110.19
Step by Step Solution
- Step 1: Write the proportion equation
379,293.98 : 523,381.11 = 209,517.98 : x - Step 2: Convert to fraction form
379,293.98/523,381.11 = 209,517.98/x - Step 3: Cross multiply
379,293.98x = 523,381.11 × 209,517.98 - Step 4: Simplify right side
379,293.98x = 109,657,752,937.36 - Step 5: Solve for x
x = 109,657,752,937.36/379,293.98 - Step 6: Final answer
x = 289,110.19
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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.