Finding the Fourth Proportional to 416.28, 624.69 and 185.31
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Solution
The fourth proportional to 416.28, 624.69 and 185.31 is: 278.09
Step by Step Solution
- Step 1: Write the proportion equation
416.28 : 624.69 = 185.31 : x - Step 2: Convert to fraction form
416.28/624.69 = 185.31/x - Step 3: Cross multiply
416.28x = 624.69 × 185.31 - Step 4: Simplify right side
416.28x = 115,761.30 - Step 5: Solve for x
x = 115,761.30/416.28 - Step 6: Final answer
x = 278.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.