Finding the Fourth Proportional to 445.38, 614.57 and 248.90
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Solution
The fourth proportional to 445.38, 614.57 and 248.90 is: 343.44
Step by Step Solution
- Step 1: Write the proportion equation
445.38 : 614.57 = 248.90 : x - Step 2: Convert to fraction form
445.38/614.57 = 248.90/x - Step 3: Cross multiply
445.38x = 614.57 × 248.90 - Step 4: Simplify right side
445.38x = 152,962.16 - Step 5: Solve for x
x = 152,962.16/445.38 - Step 6: Final answer
x = 343.44
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1.5x scale
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.