Finding the Fourth Proportional to 189,439.73, 261,425.53 and 104,556.79
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Solution
The fourth proportional to 189,439.73, 261,425.53 and 104,556.79 is: 144,287.65
Step by Step Solution
- Step 1: Write the proportion equation
189,439.73 : 261,425.53 = 104,556.79 : x - Step 2: Convert to fraction form
189,439.73/261,425.53 = 104,556.79/x - Step 3: Cross multiply
189,439.73x = 261,425.53 × 104,556.79 - Step 4: Simplify right side
189,439.73x = 27,333,812,410.94 - Step 5: Solve for x
x = 27,333,812,410.94/189,439.73 - Step 6: Final answer
x = 144,287.65
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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.