Finding the Fourth Proportional to 212,526.20, 293,274.84 and 121,877.79
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Solution
The fourth proportional to 212,526.20, 293,274.84 and 121,877.79 is: 168,184.86
Step by Step Solution
- Step 1: Write the proportion equation
212,526.20 : 293,274.84 = 121,877.79 : x - Step 2: Convert to fraction form
212,526.20/293,274.84 = 121,877.79/x - Step 3: Cross multiply
212,526.20x = 293,274.84 × 121,877.79 - Step 4: Simplify right side
212,526.20x = 35,743,689,361.80 - Step 5: Solve for x
x = 35,743,689,361.80/212,526.20 - Step 6: Final answer
x = 168,184.86
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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.