Finding the Fourth Proportional to 189,357.36, 261,321.06 and 104,479.92
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Solution
The fourth proportional to 189,357.36, 261,321.06 and 104,479.92 is: 144,186.65
Step by Step Solution
- Step 1: Write the proportion equation
189,357.36 : 261,321.06 = 104,479.92 : x - Step 2: Convert to fraction form
189,357.36/261,321.06 = 104,479.92/x - Step 3: Cross multiply
189,357.36x = 261,321.06 × 104,479.92 - Step 4: Simplify right side
189,357.36x = 27,302,803,443.12 - Step 5: Solve for x
x = 27,302,803,443.12/189,357.36 - Step 6: Final answer
x = 144,186.65
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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.