Finding the Fourth Proportional to 456.19, 629.55 and 249.19
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Solution
The fourth proportional to 456.19, 629.55 and 249.19 is: 343.88
Step by Step Solution
- Step 1: Write the proportion equation
456.19 : 629.55 = 249.19 : x - Step 2: Convert to fraction form
456.19/629.55 = 249.19/x - Step 3: Cross multiply
456.19x = 629.55 × 249.19 - Step 4: Simplify right side
456.19x = 156,875.99 - Step 5: Solve for x
x = 156,875.99/456.19 - Step 6: Final answer
x = 343.88
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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.