Finding the Fourth Proportional to 189,574.48, 261,610.68 and 104,689.84
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Solution
The fourth proportional to 189,574.48, 261,610.68 and 104,689.84 is: 144,470.82
Step by Step Solution
- Step 1: Write the proportion equation
189,574.48 : 261,610.68 = 104,689.84 : x - Step 2: Convert to fraction form
189,574.48/261,610.68 = 104,689.84/x - Step 3: Cross multiply
189,574.48x = 261,610.68 × 104,689.84 - Step 4: Simplify right side
189,574.48x = 27,387,980,231.49 - Step 5: Solve for x
x = 27,387,980,231.49/189,574.48 - Step 6: Final answer
x = 144,470.82
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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.