Finding the Fourth Proportional to 221,944.14, 306,253.17 and 131,305.14
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Solution
The fourth proportional to 221,944.14, 306,253.17 and 131,305.14 is: 181,183.50
Step by Step Solution
- Step 1: Write the proportion equation
221,944.14 : 306,253.17 = 131,305.14 : x - Step 2: Convert to fraction form
221,944.14/306,253.17 = 131,305.14/x - Step 3: Cross multiply
221,944.14x = 306,253.17 × 131,305.14 - Step 4: Simplify right side
221,944.14x = 40,212,615,362.29 - Step 5: Solve for x
x = 40,212,615,362.29/221,944.14 - Step 6: Final answer
x = 181,183.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.