Finding the Fourth Proportional to 206,639.34, 285,088.95 and 135,060.68
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Solution
The fourth proportional to 206,639.34, 285,088.95 and 135,060.68 is: 186,335.80
Step by Step Solution
- Step 1: Write the proportion equation
206,639.34 : 285,088.95 = 135,060.68 : x - Step 2: Convert to fraction form
206,639.34/285,088.95 = 135,060.68/x - Step 3: Cross multiply
206,639.34x = 285,088.95 × 135,060.68 - Step 4: Simplify right side
206,639.34x = 38,504,306,022.04 - Step 5: Solve for x
x = 38,504,306,022.04/206,639.34 - Step 6: Final answer
x = 186,335.80
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1.5x scale
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.