Finding the Fourth Proportional to 438.62, 605.34 and 252.08
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Solution
The fourth proportional to 438.62, 605.34 and 252.08 is: 347.89
Step by Step Solution
- Step 1: Write the proportion equation
438.62 : 605.34 = 252.08 : x - Step 2: Convert to fraction form
438.62/605.34 = 252.08/x - Step 3: Cross multiply
438.62x = 605.34 × 252.08 - Step 4: Simplify right side
438.62x = 152,591.08 - Step 5: Solve for x
x = 152,591.08/438.62 - Step 6: Final answer
x = 347.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.