Finding the Fourth Proportional to 212,485.41, 293,230.94 and 121,844.79
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Solution
The fourth proportional to 212,485.41, 293,230.94 and 121,844.79 is: 168,146.42
Step by Step Solution
- Step 1: Write the proportion equation
212,485.41 : 293,230.94 = 121,844.79 : x - Step 2: Convert to fraction form
212,485.41/293,230.94 = 121,844.79/x - Step 3: Cross multiply
212,485.41x = 293,230.94 × 121,844.79 - Step 4: Simplify right side
212,485.41x = 35,728,661,696.58 - Step 5: Solve for x
x = 35,728,661,696.58/212,485.41 - Step 6: Final answer
x = 168,146.42
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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.