Finding the Fourth Proportional to 406,821.18, 561,391.05 and 225,522.53
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Solution
The fourth proportional to 406,821.18, 561,391.05 and 225,522.53 is: 311,208.79
Step by Step Solution
- Step 1: Write the proportion equation
406,821.18 : 561,391.05 = 225,522.53 : x - Step 2: Convert to fraction form
406,821.18/561,391.05 = 225,522.53/x - Step 3: Cross multiply
406,821.18x = 561,391.05 × 225,522.53 - Step 4: Simplify right side
406,821.18x = 126,606,330,059.33 - Step 5: Solve for x
x = 126,606,330,059.33/406,821.18 - Step 6: Final answer
x = 311,208.79
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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.