Finding the Fourth Proportional to 378.44, 567.71 and 134.99
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Solution
The fourth proportional to 378.44, 567.71 and 134.99 is: 202.50
Step by Step Solution
- Step 1: Write the proportion equation
378.44 : 567.71 = 134.99 : x - Step 2: Convert to fraction form
378.44/567.71 = 134.99/x - Step 3: Cross multiply
378.44x = 567.71 × 134.99 - Step 4: Simplify right side
378.44x = 76,634.50 - Step 5: Solve for x
x = 76,634.50/378.44 - Step 6: Final answer
x = 202.50
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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.