Finding the Fourth Proportional to 181,239.80, 271,859.70 and 139,767.80
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Solution
The fourth proportional to 181,239.80, 271,859.70 and 139,767.80 is: 209,651.70
Step by Step Solution
- Step 1: Write the proportion equation
181,239.80 : 271,859.70 = 139,767.80 : x - Step 2: Convert to fraction form
181,239.80/271,859.70 = 139,767.80/x - Step 3: Cross multiply
181,239.80x = 271,859.70 × 139,767.80 - Step 4: Simplify right side
181,239.80x = 37,997,232,177.66 - Step 5: Solve for x
x = 37,997,232,177.66/181,239.80 - Step 6: Final answer
x = 209,651.70
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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.