Finding the Fourth Proportional to 414.55, 621.86 and 323.07
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Solution
The fourth proportional to 414.55, 621.86 and 323.07 is: 484.63
Step by Step Solution
- Step 1: Write the proportion equation
414.55 : 621.86 = 323.07 : x - Step 2: Convert to fraction form
414.55/621.86 = 323.07/x - Step 3: Cross multiply
414.55x = 621.86 × 323.07 - Step 4: Simplify right side
414.55x = 200,904.31 - Step 5: Solve for x
x = 200,904.31/414.55 - Step 6: Final answer
x = 484.63
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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.