Finding the Fourth Proportional to 393.93, 590.04 and 252.99
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Solution
The fourth proportional to 393.93, 590.04 and 252.99 is: 378.94
Step by Step Solution
- Step 1: Write the proportion equation
393.93 : 590.04 = 252.99 : x - Step 2: Convert to fraction form
393.93/590.04 = 252.99/x - Step 3: Cross multiply
393.93x = 590.04 × 252.99 - Step 4: Simplify right side
393.93x = 149,274.22 - Step 5: Solve for x
x = 149,274.22/393.93 - Step 6: Final answer
x = 378.94
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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.