Finding the Fourth Proportional to 224.99, 310.45 and 126.74
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Solution
The fourth proportional to 224.99, 310.45 and 126.74 is: 174.88
Step by Step Solution
- Step 1: Write the proportion equation
224.99 : 310.45 = 126.74 : x - Step 2: Convert to fraction form
224.99/310.45 = 126.74/x - Step 3: Cross multiply
224.99x = 310.45 × 126.74 - Step 4: Simplify right side
224.99x = 39,346.43 - Step 5: Solve for x
x = 39,346.43/224.99 - Step 6: Final answer
x = 174.88
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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.