Finding the Fourth Proportional to 212,815.62, 293,685.57 and 122,177.46
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Solution
The fourth proportional to 212,815.62, 293,685.57 and 122,177.46 is: 168,604.90
Step by Step Solution
- Step 1: Write the proportion equation
212,815.62 : 293,685.57 = 122,177.46 : x - Step 2: Convert to fraction form
212,815.62/293,685.57 = 122,177.46/x - Step 3: Cross multiply
212,815.62x = 293,685.57 × 122,177.46 - Step 4: Simplify right side
212,815.62x = 35,881,756,981.25 - Step 5: Solve for x
x = 35,881,756,981.25/212,815.62 - Step 6: Final answer
x = 168,604.90
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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.