Finding the Fourth Proportional to 308,207.92, 425,290.09 and 170,368.23
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Solution
The fourth proportional to 308,207.92, 425,290.09 and 170,368.23 is: 235,087.79
Step by Step Solution
- Step 1: Write the proportion equation
308,207.92 : 425,290.09 = 170,368.23 : x - Step 2: Convert to fraction form
308,207.92/425,290.09 = 170,368.23/x - Step 3: Cross multiply
308,207.92x = 425,290.09 × 170,368.23 - Step 4: Simplify right side
308,207.92x = 72,455,919,869.84 - Step 5: Solve for x
x = 72,455,919,869.84/308,207.92 - Step 6: Final answer
x = 235,087.79
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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.