Finding the Fourth Proportional to 416,138.13, 574,270.62 and 225,151.52
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Solution
The fourth proportional to 416,138.13, 574,270.62 and 225,151.52 is: 310,709.09
Step by Step Solution
- Step 1: Write the proportion equation
416,138.13 : 574,270.62 = 225,151.52 : x - Step 2: Convert to fraction form
416,138.13/574,270.62 = 225,151.52/x - Step 3: Cross multiply
416,138.13x = 574,270.62 × 225,151.52 - Step 4: Simplify right side
416,138.13x = 129,297,900,112.99 - Step 5: Solve for x
x = 129,297,900,112.99/416,138.13 - Step 6: Final answer
x = 310,709.09
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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.