Finding the Fourth Proportional to 284,640.24, 392,799.96 and 155,578.08
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Solution
The fourth proportional to 284,640.24, 392,799.96 and 155,578.08 is: 214,695.80
Step by Step Solution
- Step 1: Write the proportion equation
284,640.24 : 392,799.96 = 155,578.08 : x - Step 2: Convert to fraction form
284,640.24/392,799.96 = 155,578.08/x - Step 3: Cross multiply
284,640.24x = 392,799.96 × 155,578.08 - Step 4: Simplify right side
284,640.24x = 61,111,063,600.88 - Step 5: Solve for x
x = 61,111,063,600.88/284,640.24 - Step 6: Final answer
x = 214,695.80
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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.