Finding the Fourth Proportional to 284,446.05, 392,531.47 and 155,382.98
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Solution
The fourth proportional to 284,446.05, 392,531.47 and 155,382.98 is: 214,426.28
Step by Step Solution
- Step 1: Write the proportion equation
284,446.05 : 392,531.47 = 155,382.98 : x - Step 2: Convert to fraction form
284,446.05/392,531.47 = 155,382.98/x - Step 3: Cross multiply
284,446.05x = 392,531.47 × 155,382.98 - Step 4: Simplify right side
284,446.05x = 60,992,707,201.27 - Step 5: Solve for x
x = 60,992,707,201.27/284,446.05 - Step 6: Final answer
x = 214,426.28
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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.