Finding the Fourth Proportional to 206,733.99, 309,904.14 and 66,394.20
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Solution
The fourth proportional to 206,733.99, 309,904.14 and 66,394.20 is: 99,528.08
Step by Step Solution
- Step 1: Write the proportion equation
206,733.99 : 309,904.14 = 66,394.20 : x - Step 2: Convert to fraction form
206,733.99/309,904.14 = 66,394.20/x - Step 3: Cross multiply
206,733.99x = 309,904.14 × 66,394.20 - Step 4: Simplify right side
206,733.99x = 20,575,835,902.47 - Step 5: Solve for x
x = 20,575,835,902.47/206,733.99 - Step 6: Final answer
x = 99,528.08
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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.