Finding the Fourth Proportional to 378.62, 567.63 and 173.09
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Solution
The fourth proportional to 378.62, 567.63 and 173.09 is: 259.49
Step by Step Solution
- Step 1: Write the proportion equation
378.62 : 567.63 = 173.09 : x - Step 2: Convert to fraction form
378.62/567.63 = 173.09/x - Step 3: Cross multiply
378.62x = 567.63 × 173.09 - Step 4: Simplify right side
378.62x = 98,248.24 - Step 5: Solve for x
x = 98,248.24/378.62 - Step 6: Final answer
x = 259.49
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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.