Finding the Fourth Proportional to 207,239.84, 285,965.25 and 130,729.94
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Solution
The fourth proportional to 207,239.84, 285,965.25 and 130,729.94 is: 180,391.08
Step by Step Solution
- Step 1: Write the proportion equation
207,239.84 : 285,965.25 = 130,729.94 : x - Step 2: Convert to fraction form
207,239.84/285,965.25 = 130,729.94/x - Step 3: Cross multiply
207,239.84x = 285,965.25 × 130,729.94 - Step 4: Simplify right side
207,239.84x = 37,384,218,544.76 - Step 5: Solve for x
x = 37,384,218,544.76/207,239.84 - Step 6: Final answer
x = 180,391.08
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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.