Finding the Fourth Proportional to 378.60, 567.36 and 262.80
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Solution
The fourth proportional to 378.60, 567.36 and 262.80 is: 393.83
Step by Step Solution
- Step 1: Write the proportion equation
378.60 : 567.36 = 262.80 : x - Step 2: Convert to fraction form
378.60/567.36 = 262.80/x - Step 3: Cross multiply
378.60x = 567.36 × 262.80 - Step 4: Simplify right side
378.60x = 149,102.21 - Step 5: Solve for x
x = 149,102.21/378.60 - Step 6: Final answer
x = 393.83
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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.