Finding the Fourth Proportional to 275,201.75, 412,750.42 and 85,664.48
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Solution
The fourth proportional to 275,201.75, 412,750.42 and 85,664.48 is: 128,480.46
Step by Step Solution
- Step 1: Write the proportion equation
275,201.75 : 412,750.42 = 85,664.48 : x - Step 2: Convert to fraction form
275,201.75/412,750.42 = 85,664.48/x - Step 3: Cross multiply
275,201.75x = 412,750.42 × 85,664.48 - Step 4: Simplify right side
275,201.75x = 35,358,047,821.17 - Step 5: Solve for x
x = 35,358,047,821.17/275,201.75 - Step 6: Final answer
x = 128,480.46
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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.