Finding the Fourth Proportional to 311,945.20, 467,917.80 and 125,090.80
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Solution
The fourth proportional to 311,945.20, 467,917.80 and 125,090.80 is: 187,636.20
Step by Step Solution
- Step 1: Write the proportion equation
311,945.20 : 467,917.80 = 125,090.80 : x - Step 2: Convert to fraction form
311,945.20/467,917.80 = 125,090.80/x - Step 3: Cross multiply
311,945.20x = 467,917.80 × 125,090.80 - Step 4: Simplify right side
311,945.20x = 58,532,211,936.24 - Step 5: Solve for x
x = 58,532,211,936.24/311,945.20 - Step 6: Final answer
x = 187,636.20
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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.