Finding the Fourth Proportional to 212,243.66, 292,917.71 and 121,611.65
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Solution
The fourth proportional to 212,243.66, 292,917.71 and 121,611.65 is: 167,836.37
Step by Step Solution
- Step 1: Write the proportion equation
212,243.66 : 292,917.71 = 121,611.65 : x - Step 2: Convert to fraction form
212,243.66/292,917.71 = 121,611.65/x - Step 3: Cross multiply
212,243.66x = 292,917.71 × 121,611.65 - Step 4: Simplify right side
212,243.66x = 35,622,203,954.67 - Step 5: Solve for x
x = 35,622,203,954.67/212,243.66 - Step 6: Final answer
x = 167,836.37
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1.5x scale
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.