Finding the Third Proportional to 430 and 853
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Solution
The third proportional to 430 and 853 is: 1,692.11
Step by Step Solution
- Step 1: Write the proportion equation
430 : 853 = 853 : x - Step 2: Convert to fraction form
430/853 = 853/x - Step 3: Cross multiply
430x = 853 × 853 - Step 4: Simplify right side
430x = 727,609 - Step 5: Solve for x
x = 727,609/430 - Step 6: Final answer
x = 1,692.11
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Why These Related Problems?
These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.