Finding the Fourth Proportional to 407,075.26, 561,740.92 and 225,774.18
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Solution
The fourth proportional to 407,075.26, 561,740.92 and 225,774.18 is: 311,555.65
Step by Step Solution
- Step 1: Write the proportion equation
407,075.26 : 561,740.92 = 225,774.18 : x - Step 2: Convert to fraction form
407,075.26/561,740.92 = 225,774.18/x - Step 3: Cross multiply
407,075.26x = 561,740.92 × 225,774.18 - Step 4: Simplify right side
407,075.26x = 126,826,595,585.45 - Step 5: Solve for x
x = 126,826,595,585.45/407,075.26 - Step 6: Final answer
x = 311,555.65
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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.