Finding the Fourth Proportional to 206,426.68, 284,872.08 and 115,802.80
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Solution
The fourth proportional to 206,426.68, 284,872.08 and 115,802.80 is: 159,809.69
Step by Step Solution
- Step 1: Write the proportion equation
206,426.68 : 284,872.08 = 115,802.80 : x - Step 2: Convert to fraction form
206,426.68/284,872.08 = 115,802.80/x - Step 3: Cross multiply
206,426.68x = 284,872.08 × 115,802.80 - Step 4: Simplify right side
206,426.68x = 32,988,984,505.82 - Step 5: Solve for x
x = 32,988,984,505.82/206,426.68 - Step 6: Final answer
x = 159,809.69
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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.