Finding the Fourth Proportional to 378,058.62, 521,720.62 and 208,292.75
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Solution
The fourth proportional to 378,058.62, 521,720.62 and 208,292.75 is: 287,443.84
Step by Step Solution
- Step 1: Write the proportion equation
378,058.62 : 521,720.62 = 208,292.75 : x - Step 2: Convert to fraction form
378,058.62/521,720.62 = 208,292.75/x - Step 3: Cross multiply
378,058.62x = 521,720.62 × 208,292.75 - Step 4: Simplify right side
378,058.62x = 108,670,622,671.51 - Step 5: Solve for x
x = 108,670,622,671.51/378,058.62 - Step 6: Final answer
x = 287,443.84
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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.