Finding the Fourth Proportional to 378,542.49, 567,915.80 and 125,863.80
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Solution
The fourth proportional to 378,542.49, 567,915.80 and 125,863.80 is: 188,829.63
Step by Step Solution
- Step 1: Write the proportion equation
378,542.49 : 567,915.80 = 125,863.80 : x - Step 2: Convert to fraction form
378,542.49/567,915.80 = 125,863.80/x - Step 3: Cross multiply
378,542.49x = 567,915.80 × 125,863.80 - Step 4: Simplify right side
378,542.49x = 71,480,040,038.72 - Step 5: Solve for x
x = 71,480,040,038.72/378,542.49 - Step 6: Final answer
x = 188,829.63
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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.