Finding the Fourth Proportional to 515.91, 773.93 and 272.44
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Solution
The fourth proportional to 515.91, 773.93 and 272.44 is: 408.70
Step by Step Solution
- Step 1: Write the proportion equation
515.91 : 773.93 = 272.44 : x - Step 2: Convert to fraction form
515.91/773.93 = 272.44/x - Step 3: Cross multiply
515.91x = 773.93 × 272.44 - Step 4: Simplify right side
515.91x = 210,848.13 - Step 5: Solve for x
x = 210,848.13/515.91 - Step 6: Final answer
x = 408.70
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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.