Finding the Fourth Proportional to 252.36, 347.77 and 217.38
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Solution
The fourth proportional to 252.36, 347.77 and 217.38 is: 299.57
Step by Step Solution
- Step 1: Write the proportion equation
252.36 : 347.77 = 217.38 : x - Step 2: Convert to fraction form
252.36/347.77 = 217.38/x - Step 3: Cross multiply
252.36x = 347.77 × 217.38 - Step 4: Simplify right side
252.36x = 75,598.24 - Step 5: Solve for x
x = 75,598.24/252.36 - Step 6: Final answer
x = 299.57
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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.