Finding the Fourth Proportional to 206,188.68, 284,513.78 and 121,274.76
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Solution
The fourth proportional to 206,188.68, 284,513.78 and 121,274.76 is: 167,343.52
Step by Step Solution
- Step 1: Write the proportion equation
206,188.68 : 284,513.78 = 121,274.76 : x - Step 2: Convert to fraction form
206,188.68/284,513.78 = 121,274.76/x - Step 3: Cross multiply
206,188.68x = 284,513.78 × 121,274.76 - Step 4: Simplify right side
206,188.68x = 34,504,340,386.19 - Step 5: Solve for x
x = 34,504,340,386.19/206,188.68 - Step 6: Final answer
x = 167,343.52
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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.