Finding the Fourth Proportional to 235,727.75, 325,311.20 and 128,304.74
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Solution
The fourth proportional to 235,727.75, 325,311.20 and 128,304.74 is: 177,064.30
Step by Step Solution
- Step 1: Write the proportion equation
235,727.75 : 325,311.20 = 128,304.74 : x - Step 2: Convert to fraction form
235,727.75/325,311.20 = 128,304.74/x - Step 3: Cross multiply
235,727.75x = 325,311.20 × 128,304.74 - Step 4: Simplify right side
235,727.75x = 41,738,969,227.13 - Step 5: Solve for x
x = 41,738,969,227.13/235,727.75 - Step 6: Final answer
x = 177,064.30
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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.