Finding the Fourth Proportional to 239,286.79, 330,203.82 and 131,839.48
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Solution
The fourth proportional to 239,286.79, 330,203.82 and 131,839.48 is: 181,931.90
Step by Step Solution
- Step 1: Write the proportion equation
239,286.79 : 330,203.82 = 131,839.48 : x - Step 2: Convert to fraction form
239,286.79/330,203.82 = 131,839.48/x - Step 3: Cross multiply
239,286.79x = 330,203.82 × 131,839.48 - Step 4: Simplify right side
239,286.79x = 43,533,899,922.81 - Step 5: Solve for x
x = 43,533,899,922.81/239,286.79 - Step 6: Final answer
x = 181,931.90
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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.