Finding the Fourth Proportional to 189,879.83, 261,944.93 and 135,444.02
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Solution
The fourth proportional to 189,879.83, 261,944.93 and 135,444.02 is: 186,849.09
Step by Step Solution
- Step 1: Write the proportion equation
189,879.83 : 261,944.93 = 135,444.02 : x - Step 2: Convert to fraction form
189,879.83/261,944.93 = 135,444.02/x - Step 3: Cross multiply
189,879.83x = 261,944.93 × 135,444.02 - Step 4: Simplify right side
189,879.83x = 35,478,872,350.87 - Step 5: Solve for x
x = 35,478,872,350.87/189,879.83 - Step 6: Final answer
x = 186,849.09
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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.