Finding the Fourth Proportional to 378.74, 567.62 and 170.35
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Solution
The fourth proportional to 378.74, 567.62 and 170.35 is: 255.31
Step by Step Solution
- Step 1: Write the proportion equation
378.74 : 567.62 = 170.35 : x - Step 2: Convert to fraction form
378.74/567.62 = 170.35/x - Step 3: Cross multiply
378.74x = 567.62 × 170.35 - Step 4: Simplify right side
378.74x = 96,694.24 - Step 5: Solve for x
x = 96,694.24/378.74 - Step 6: Final answer
x = 255.31
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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.