Finding the Fourth Proportional to 212,244.87, 292,939.49 and 121,661.48
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Solution
The fourth proportional to 212,244.87, 292,939.49 and 121,661.48 is: 167,916.66
Step by Step Solution
- Step 1: Write the proportion equation
212,244.87 : 292,939.49 = 121,661.48 : x - Step 2: Convert to fraction form
212,244.87/292,939.49 = 121,661.48/x - Step 3: Cross multiply
212,244.87x = 292,939.49 × 121,661.48 - Step 4: Simplify right side
212,244.87x = 35,639,449,830.84 - Step 5: Solve for x
x = 35,639,449,830.84/212,244.87 - Step 6: Final answer
x = 167,916.66
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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.