Finding the Fourth Proportional to 189,364.70, 261,417.97 and 117,767.79
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Solution
The fourth proportional to 189,364.70, 261,417.97 and 117,767.79 is: 162,578.44
Step by Step Solution
- Step 1: Write the proportion equation
189,364.70 : 261,417.97 = 117,767.79 : x - Step 2: Convert to fraction form
189,364.70/261,417.97 = 117,767.79/x - Step 3: Cross multiply
189,364.70x = 261,417.97 × 117,767.79 - Step 4: Simplify right side
189,364.70x = 30,786,616,593.19 - Step 5: Solve for x
x = 30,786,616,593.19/189,364.70 - Step 6: Final answer
x = 162,578.44
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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.