Finding the Fourth Proportional to 206,403.28, 309,605.19 and 56,645.62
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Solution
The fourth proportional to 206,403.28, 309,605.19 and 56,645.62 is: 84,968.50
Step by Step Solution
- Step 1: Write the proportion equation
206,403.28 : 309,605.19 = 56,645.62 : x - Step 2: Convert to fraction form
206,403.28/309,605.19 = 56,645.62/x - Step 3: Cross multiply
206,403.28x = 309,605.19 × 56,645.62 - Step 4: Simplify right side
206,403.28x = 17,537,777,942.77 - Step 5: Solve for x
x = 17,537,777,942.77/206,403.28 - Step 6: Final answer
x = 84,968.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.