Finding the Fourth Proportional to 415,087.85, 622,632.23 and 115,569.09
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Solution
The fourth proportional to 415,087.85, 622,632.23 and 115,569.09 is: 173,353.75
Step by Step Solution
- Step 1: Write the proportion equation
415,087.85 : 622,632.23 = 115,569.09 : x - Step 2: Convert to fraction form
415,087.85/622,632.23 = 115,569.09/x - Step 3: Cross multiply
415,087.85x = 622,632.23 × 115,569.09 - Step 4: Simplify right side
415,087.85x = 71,957,036,534.76 - Step 5: Solve for x
x = 71,957,036,534.76/415,087.85 - Step 6: Final answer
x = 173,353.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.