Finding the Fourth Proportional to 348.14, 480.21 and 223.75
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Solution
The fourth proportional to 348.14, 480.21 and 223.75 is: 308.63
Step by Step Solution
- Step 1: Write the proportion equation
348.14 : 480.21 = 223.75 : x - Step 2: Convert to fraction form
348.14/480.21 = 223.75/x - Step 3: Cross multiply
348.14x = 480.21 × 223.75 - Step 4: Simplify right side
348.14x = 107,446.99 - Step 5: Solve for x
x = 107,446.99/348.14 - Step 6: Final answer
x = 308.63
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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.