Finding the Fourth Proportional to 181,115.40, 271,478.70 and 68,752.20
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Solution
The fourth proportional to 181,115.40, 271,478.70 and 68,752.20 is: 103,054.50
Step by Step Solution
- Step 1: Write the proportion equation
181,115.40 : 271,478.70 = 68,752.20 : x - Step 2: Convert to fraction form
181,115.40/271,478.70 = 68,752.20/x - Step 3: Cross multiply
181,115.40x = 271,478.70 × 68,752.20 - Step 4: Simplify right side
181,115.40x = 18,664,757,878.14 - Step 5: Solve for x
x = 18,664,757,878.14/181,115.40 - Step 6: Final answer
x = 103,054.50
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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.