Finding the Fourth Proportional to 451.64, 623.21 and 252.44
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Solution
The fourth proportional to 451.64, 623.21 and 252.44 is: 348.34
Step by Step Solution
- Step 1: Write the proportion equation
451.64 : 623.21 = 252.44 : x - Step 2: Convert to fraction form
451.64/623.21 = 252.44/x - Step 3: Cross multiply
451.64x = 623.21 × 252.44 - Step 4: Simplify right side
451.64x = 157,323.13 - Step 5: Solve for x
x = 157,323.13/451.64 - Step 6: Final answer
x = 348.34
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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.