Finding the Fourth Proportional to 212,834.88, 293,629.50 and 122,158.08
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Solution
The fourth proportional to 212,834.88, 293,629.50 and 122,158.08 is: 168,530.72
Step by Step Solution
- Step 1: Write the proportion equation
212,834.88 : 293,629.50 = 122,158.08 : x - Step 2: Convert to fraction form
212,834.88/293,629.50 = 122,158.08/x - Step 3: Cross multiply
212,834.88x = 293,629.50 × 122,158.08 - Step 4: Simplify right side
212,834.88x = 35,869,215,951.36 - Step 5: Solve for x
x = 35,869,215,951.36/212,834.88 - Step 6: Final answer
x = 168,530.72
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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.