Finding the Fourth Proportional to 406,762.93, 561,273.84 and 225,474.75
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Solution
The fourth proportional to 406,762.93, 561,273.84 and 225,474.75 is: 311,122.45
Step by Step Solution
- Step 1: Write the proportion equation
406,762.93 : 561,273.84 = 225,474.75 : x - Step 2: Convert to fraction form
406,762.93/561,273.84 = 225,474.75/x - Step 3: Cross multiply
406,762.93x = 561,273.84 × 225,474.75 - Step 4: Simplify right side
406,762.93x = 126,553,078,755.54 - Step 5: Solve for x
x = 126,553,078,755.54/406,762.93 - Step 6: Final answer
x = 311,122.45
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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.