Finding the Fourth Proportional to 311,944.70, 467,917.05 and 125,090.30
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Solution
The fourth proportional to 311,944.70, 467,917.05 and 125,090.30 is: 187,635.45
Step by Step Solution
- Step 1: Write the proportion equation
311,944.70 : 467,917.05 = 125,090.30 : x - Step 2: Convert to fraction form
311,944.70/467,917.05 = 125,090.30/x - Step 3: Cross multiply
311,944.70x = 467,917.05 × 125,090.30 - Step 4: Simplify right side
311,944.70x = 58,531,884,159.62 - Step 5: Solve for x
x = 58,531,884,159.62/311,944.70 - Step 6: Final answer
x = 187,635.45
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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.