Finding the Fourth Proportional to 217,165.26, 299,717.64 and 121,692.18
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Solution
The fourth proportional to 217,165.26, 299,717.64 and 121,692.18 is: 167,951.78
Step by Step Solution
- Step 1: Write the proportion equation
217,165.26 : 299,717.64 = 121,692.18 : x - Step 2: Convert to fraction form
217,165.26/299,717.64 = 121,692.18/x - Step 3: Cross multiply
217,165.26x = 299,717.64 × 121,692.18 - Step 4: Simplify right side
217,165.26x = 36,473,292,996.06 - Step 5: Solve for x
x = 36,473,292,996.06/217,165.26 - Step 6: Final answer
x = 167,951.78
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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.