Finding the Fourth Proportional to 445.01, 614.19 and 321.08
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Solution
The fourth proportional to 445.01, 614.19 and 321.08 is: 443.15
Step by Step Solution
- Step 1: Write the proportion equation
445.01 : 614.19 = 321.08 : x - Step 2: Convert to fraction form
445.01/614.19 = 321.08/x - Step 3: Cross multiply
445.01x = 614.19 × 321.08 - Step 4: Simplify right side
445.01x = 197,204.13 - Step 5: Solve for x
x = 197,204.13/445.01 - Step 6: Final answer
x = 443.15
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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.