Finding the Fourth Proportional to 206,564.32, 309,064.56 and 122,369.68
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Solution
The fourth proportional to 206,564.32, 309,064.56 and 122,369.68 is: 183,091.31
Step by Step Solution
- Step 1: Write the proportion equation
206,564.32 : 309,064.56 = 122,369.68 : x - Step 2: Convert to fraction form
206,564.32/309,064.56 = 122,369.68/x - Step 3: Cross multiply
206,564.32x = 309,064.56 × 122,369.68 - Step 4: Simplify right side
206,564.32x = 37,820,131,306.54 - Step 5: Solve for x
x = 37,820,131,306.54/206,564.32 - Step 6: Final answer
x = 183,091.31
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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.