Finding the Fourth Proportional to 206,800.14, 285,311.52 and 135,222.06
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Solution
The fourth proportional to 206,800.14, 285,311.52 and 135,222.06 is: 186,558.92
Step by Step Solution
- Step 1: Write the proportion equation
206,800.14 : 285,311.52 = 135,222.06 : x - Step 2: Convert to fraction form
206,800.14/285,311.52 = 135,222.06/x - Step 3: Cross multiply
206,800.14x = 285,311.52 × 135,222.06 - Step 4: Simplify right side
206,800.14x = 38,580,411,476.13 - Step 5: Solve for x
x = 38,580,411,476.13/206,800.14 - Step 6: Final answer
x = 186,558.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.