Finding the Fourth Proportional to 189,544.09, 261,357.60 and 154,980.99
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Solution
The fourth proportional to 189,544.09, 261,357.60 and 154,980.99 is: 213,699.41
Step by Step Solution
- Step 1: Write the proportion equation
189,544.09 : 261,357.60 = 154,980.99 : x - Step 2: Convert to fraction form
189,544.09/261,357.60 = 154,980.99/x - Step 3: Cross multiply
189,544.09x = 261,357.60 × 154,980.99 - Step 4: Simplify right side
189,544.09x = 40,505,459,592.02 - Step 5: Solve for x
x = 40,505,459,592.02/189,544.09 - Step 6: Final answer
x = 213,699.41
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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.