Finding the Fourth Proportional to 189,218.84, 261,121.72 and 104,336.08
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Solution
The fourth proportional to 189,218.84, 261,121.72 and 104,336.08 is: 143,983.64
Step by Step Solution
- Step 1: Write the proportion equation
189,218.84 : 261,121.72 = 104,336.08 : x - Step 2: Convert to fraction form
189,218.84/261,121.72 = 104,336.08/x - Step 3: Cross multiply
189,218.84x = 261,121.72 × 104,336.08 - Step 4: Simplify right side
189,218.84x = 27,244,416,667.66 - Step 5: Solve for x
x = 27,244,416,667.66/189,218.84 - Step 6: Final answer
x = 143,983.64
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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.