Finding the Fourth Proportional to 415,178.75, 622,768.73 and 115,660.19
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Solution
The fourth proportional to 415,178.75, 622,768.73 and 115,660.19 is: 173,490.45
Step by Step Solution
- Step 1: Write the proportion equation
415,178.75 : 622,768.73 = 115,660.19 : x - Step 2: Convert to fraction form
415,178.75/622,768.73 = 115,660.19/x - Step 3: Cross multiply
415,178.75x = 622,768.73 × 115,660.19 - Step 4: Simplify right side
415,178.75x = 72,029,545,945.71 - Step 5: Solve for x
x = 72,029,545,945.71/415,178.75 - Step 6: Final answer
x = 173,490.45
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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.