Finding the Fourth Proportional to 151,487.70, 227,231.55 and 121,963.20
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Solution
The fourth proportional to 151,487.70, 227,231.55 and 121,963.20 is: 182,944.80
Step by Step Solution
- Step 1: Write the proportion equation
151,487.70 : 227,231.55 = 121,963.20 : x - Step 2: Convert to fraction form
151,487.70/227,231.55 = 121,963.20/x - Step 3: Cross multiply
151,487.70x = 227,231.55 × 121,963.20 - Step 4: Simplify right side
151,487.70x = 27,713,886,978.96 - Step 5: Solve for x
x = 27,713,886,978.96/151,487.70 - Step 6: Final answer
x = 182,944.80
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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.