Finding the Fourth Proportional to 406,812.84, 561,349.80 and 225,523.08
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Solution
The fourth proportional to 406,812.84, 561,349.80 and 225,523.08 is: 311,193.07
Step by Step Solution
- Step 1: Write the proportion equation
406,812.84 : 561,349.80 = 225,523.08 : x - Step 2: Convert to fraction form
406,812.84/561,349.80 = 225,523.08/x - Step 3: Cross multiply
406,812.84x = 561,349.80 × 225,523.08 - Step 4: Simplify right side
406,812.84x = 126,597,335,853.38 - Step 5: Solve for x
x = 126,597,335,853.38/406,812.84 - Step 6: Final answer
x = 311,193.07
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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.