Finding the Fourth Proportional to 379,170.18, 523,255.68 and 209,404.44
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Solution
The fourth proportional to 379,170.18, 523,255.68 and 209,404.44 is: 288,978.59
Step by Step Solution
- Step 1: Write the proportion equation
379,170.18 : 523,255.68 = 209,404.44 : x - Step 2: Convert to fraction form
379,170.18/523,255.68 = 209,404.44/x - Step 3: Cross multiply
379,170.18x = 523,255.68 × 209,404.44 - Step 4: Simplify right side
379,170.18x = 109,572,062,647.22 - Step 5: Solve for x
x = 109,572,062,647.22/379,170.18 - Step 6: Final answer
x = 288,978.59
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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.