Finding the Fourth Proportional to 306,531.66, 423,072.21 and 202,983.29
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Solution
The fourth proportional to 306,531.66, 423,072.21 and 202,983.29 is: 280,155.68
Step by Step Solution
- Step 1: Write the proportion equation
306,531.66 : 423,072.21 = 202,983.29 : x - Step 2: Convert to fraction form
306,531.66/423,072.21 = 202,983.29/x - Step 3: Cross multiply
306,531.66x = 423,072.21 × 202,983.29 - Step 4: Simplify right side
306,531.66x = 85,876,586,978.01 - Step 5: Solve for x
x = 85,876,586,978.01/306,531.66 - Step 6: Final answer
x = 280,155.68
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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.