Finding the Fourth Proportional to 450,112.40, 621,231.50 and 259,236.31
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Solution
The fourth proportional to 450,112.40, 621,231.50 and 259,236.31 is: 357,790.09
Step by Step Solution
- Step 1: Write the proportion equation
450,112.40 : 621,231.50 = 259,236.31 : x - Step 2: Convert to fraction form
450,112.40/621,231.50 = 259,236.31/x - Step 3: Cross multiply
450,112.40x = 621,231.50 × 259,236.31 - Step 4: Simplify right side
450,112.40x = 161,045,757,313.43 - Step 5: Solve for x
x = 161,045,757,313.43/450,112.40 - Step 6: Final answer
x = 357,790.09
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1.5x scale
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.