Finding the Fourth Proportional to 378.62, 567.93 and 118.63
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Solution
The fourth proportional to 378.62, 567.93 and 118.63 is: 177.94
Step by Step Solution
- Step 1: Write the proportion equation
378.62 : 567.93 = 118.63 : x - Step 2: Convert to fraction form
378.62/567.93 = 118.63/x - Step 3: Cross multiply
378.62x = 567.93 × 118.63 - Step 4: Simplify right side
378.62x = 67,370.70 - Step 5: Solve for x
x = 67,370.70/378.62 - Step 6: Final answer
x = 177.94
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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.