Finding the Fourth Proportional to 284,706.75, 392,899.99 and 169,995.42
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Solution
The fourth proportional to 284,706.75, 392,899.99 and 169,995.42 is: 234,596.47
Step by Step Solution
- Step 1: Write the proportion equation
284,706.75 : 392,899.99 = 169,995.42 : x - Step 2: Convert to fraction form
284,706.75/392,899.99 = 169,995.42/x - Step 3: Cross multiply
284,706.75x = 392,899.99 × 169,995.42 - Step 4: Simplify right side
284,706.75x = 66,791,198,818.05 - Step 5: Solve for x
x = 66,791,198,818.05/284,706.75 - Step 6: Final answer
x = 234,596.47
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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.