Finding the Fourth Proportional to 300,390.24, 451,168.56 and 221,191.68
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Solution
The fourth proportional to 300,390.24, 451,168.56 and 221,191.68 is: 332,216.96
Step by Step Solution
- Step 1: Write the proportion equation
300,390.24 : 451,168.56 = 221,191.68 : x - Step 2: Convert to fraction form
300,390.24/451,168.56 = 221,191.68/x - Step 3: Cross multiply
300,390.24x = 451,168.56 × 221,191.68 - Step 4: Simplify right side
300,390.24x = 99,794,731,749.58 - Step 5: Solve for x
x = 99,794,731,749.58/300,390.24 - Step 6: Final answer
x = 332,216.96
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1.5x scale
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.