Finding the Fourth Proportional to 238,728.53, 329,455.81 and 131,302.49
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Solution
The fourth proportional to 238,728.53, 329,455.81 and 131,302.49 is: 181,203.17
Step by Step Solution
- Step 1: Write the proportion equation
238,728.53 : 329,455.81 = 131,302.49 : x - Step 2: Convert to fraction form
238,728.53/329,455.81 = 131,302.49/x - Step 3: Cross multiply
238,728.53x = 329,455.81 × 131,302.49 - Step 4: Simplify right side
238,728.53x = 43,258,365,976.24 - Step 5: Solve for x
x = 43,258,365,976.24/238,728.53 - Step 6: Final answer
x = 181,203.17
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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.