Finding the Fourth Proportional to 206,312.86, 309,473.58 and 66,071.08
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Solution
The fourth proportional to 206,312.86, 309,473.58 and 66,071.08 is: 99,107.99
Step by Step Solution
- Step 1: Write the proportion equation
206,312.86 : 309,473.58 = 66,071.08 : x - Step 2: Convert to fraction form
206,312.86/309,473.58 = 66,071.08/x - Step 3: Cross multiply
206,312.86x = 309,473.58 × 66,071.08 - Step 4: Simplify right side
206,312.86x = 20,447,253,662.07 - Step 5: Solve for x
x = 20,447,253,662.07/206,312.86 - Step 6: Final answer
x = 99,107.99
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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.