Finding the Fourth Proportional to 255,226.37, 382,894.97 and 77,728.70
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Solution
The fourth proportional to 255,226.37, 382,894.97 and 77,728.70 is: 116,609.93
Step by Step Solution
- Step 1: Write the proportion equation
255,226.37 : 382,894.97 = 77,728.70 : x - Step 2: Convert to fraction form
255,226.37/382,894.97 = 77,728.70/x - Step 3: Cross multiply
255,226.37x = 382,894.97 × 77,728.70 - Step 4: Simplify right side
255,226.37x = 29,761,928,823.23 - Step 5: Solve for x
x = 29,761,928,823.23/255,226.37 - Step 6: Final answer
x = 116,609.93
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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.