Finding the Fourth Proportional to 416,754.75, 575,121.56 and 225,768.09
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Solution
The fourth proportional to 416,754.75, 575,121.56 and 225,768.09 is: 311,559.96
Step by Step Solution
- Step 1: Write the proportion equation
416,754.75 : 575,121.56 = 225,768.09 : x - Step 2: Convert to fraction form
416,754.75/575,121.56 = 225,768.09/x - Step 3: Cross multiply
416,754.75x = 575,121.56 × 225,768.09 - Step 4: Simplify right side
416,754.75x = 129,844,094,990.18 - Step 5: Solve for x
x = 129,844,094,990.18/416,754.75 - Step 6: Final answer
x = 311,559.96
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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.