Finding the Fourth Proportional to 206,201.30, 309,226.08 and 71,231.02
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Solution
The fourth proportional to 206,201.30, 309,226.08 and 71,231.02 is: 106,820.32
Step by Step Solution
- Step 1: Write the proportion equation
206,201.30 : 309,226.08 = 71,231.02 : x - Step 2: Convert to fraction form
206,201.30/309,226.08 = 71,231.02/x - Step 3: Cross multiply
206,201.30x = 309,226.08 × 71,231.02 - Step 4: Simplify right side
206,201.30x = 22,026,489,089.00 - Step 5: Solve for x
x = 22,026,489,089.00/206,201.30 - Step 6: Final answer
x = 106,820.32
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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.