Finding the Fourth Proportional to 151,905.80, 227,858.70 and 122,381.30
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Solution
The fourth proportional to 151,905.80, 227,858.70 and 122,381.30 is: 183,571.95
Step by Step Solution
- Step 1: Write the proportion equation
151,905.80 : 227,858.70 = 122,381.30 : x - Step 2: Convert to fraction form
151,905.80/227,858.70 = 122,381.30/x - Step 3: Cross multiply
151,905.80x = 227,858.70 × 122,381.30 - Step 4: Simplify right side
151,905.80x = 27,885,643,922.31 - Step 5: Solve for x
x = 27,885,643,922.31/151,905.80 - Step 6: Final answer
x = 183,571.95
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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.