Finding the Fourth Proportional to 181,729.80, 271,946.70 and 115,201.80
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Solution
The fourth proportional to 181,729.80, 271,946.70 and 115,201.80 is: 172,391.92
Step by Step Solution
- Step 1: Write the proportion equation
181,729.80 : 271,946.70 = 115,201.80 : x - Step 2: Convert to fraction form
181,729.80/271,946.70 = 115,201.80/x - Step 3: Cross multiply
181,729.80x = 271,946.70 × 115,201.80 - Step 4: Simplify right side
181,729.80x = 31,328,749,344.06 - Step 5: Solve for x
x = 31,328,749,344.06/181,729.80 - Step 6: Final answer
x = 172,391.92
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1.5x scale
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.