Finding the Fourth Proportional to 212,232.75, 292,922.79 and 121,649.43
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Solution
The fourth proportional to 212,232.75, 292,922.79 and 121,649.43 is: 167,900.06
Step by Step Solution
- Step 1: Write the proportion equation
212,232.75 : 292,922.79 = 121,649.43 : x - Step 2: Convert to fraction form
212,232.75/292,922.79 = 121,649.43/x - Step 3: Cross multiply
212,232.75x = 292,922.79 × 121,649.43 - Step 4: Simplify right side
212,232.75x = 35,633,890,437.51 - Step 5: Solve for x
x = 35,633,890,437.51/212,232.75 - Step 6: Final answer
x = 167,900.06
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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.