Finding the Fourth Proportional to 406,718.39, 561,304.97 and 225,487.17
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Solution
The fourth proportional to 406,718.39, 561,304.97 and 225,487.17 is: 311,190.92
Step by Step Solution
- Step 1: Write the proportion equation
406,718.39 : 561,304.97 = 225,487.17 : x - Step 2: Convert to fraction form
406,718.39/561,304.97 = 225,487.17/x - Step 3: Cross multiply
406,718.39x = 561,304.97 × 225,487.17 - Step 4: Simplify right side
406,718.39x = 126,567,069,192.24 - Step 5: Solve for x
x = 126,567,069,192.24/406,718.39 - Step 6: Final answer
x = 311,190.92
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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.