Finding the Third Proportional to 420.50 and 938
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Solution
The third proportional to 420.50 and 938 is: 2,092.38
Step by Step Solution
- Step 1: Write the proportion equation
420.50 : 938 = 938 : x - Step 2: Convert to fraction form
420.50/938 = 938/x - Step 3: Cross multiply
420.50x = 938 × 938 - Step 4: Simplify right side
420.50x = 879,844 - Step 5: Solve for x
x = 879,844/420.50 - Step 6: Final answer
x = 2,092.38
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Why These Related Problems?
These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.