Finding the Fourth Proportional to 206,652.18, 309,682.26 and 117,722.08
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Solution
The fourth proportional to 206,652.18, 309,682.26 and 117,722.08 is: 176,414.49
Step by Step Solution
- Step 1: Write the proportion equation
206,652.18 : 309,682.26 = 117,722.08 : x - Step 2: Convert to fraction form
206,652.18/309,682.26 = 117,722.08/x - Step 3: Cross multiply
206,652.18x = 309,682.26 × 117,722.08 - Step 4: Simplify right side
206,652.18x = 36,456,439,786.30 - Step 5: Solve for x
x = 36,456,439,786.30/206,652.18 - Step 6: Final answer
x = 176,414.49
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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.