Finding the Fourth Proportional to 201,796.92, 278,320.80 and 125,272.80
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Solution
The fourth proportional to 201,796.92, 278,320.80 and 125,272.80 is: 172,777.79
Step by Step Solution
- Step 1: Write the proportion equation
201,796.92 : 278,320.80 = 125,272.80 : x - Step 2: Convert to fraction form
201,796.92/278,320.80 = 125,272.80/x - Step 3: Cross multiply
201,796.92x = 278,320.80 × 125,272.80 - Step 4: Simplify right side
201,796.92x = 34,866,025,914.24 - Step 5: Solve for x
x = 34,866,025,914.24/201,796.92 - Step 6: Final answer
x = 172,777.79
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1.5x scale
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.