Finding the Fourth Proportional to 239,160.75, 330,029.69 and 131,728.48
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Solution
The fourth proportional to 239,160.75, 330,029.69 and 131,728.48 is: 181,778.61
Step by Step Solution
- Step 1: Write the proportion equation
239,160.75 : 330,029.69 = 131,728.48 : x - Step 2: Convert to fraction form
239,160.75/330,029.69 = 131,728.48/x - Step 3: Cross multiply
239,160.75x = 330,029.69 × 131,728.48 - Step 4: Simplify right side
239,160.75x = 43,474,308,675.83 - Step 5: Solve for x
x = 43,474,308,675.83/239,160.75 - Step 6: Final answer
x = 181,778.61
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1.5x scale
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.