Finding the Fourth Proportional to 352,639.27, 486,766.36 and 209,398.26
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Solution
The fourth proportional to 352,639.27, 486,766.36 and 209,398.26 is: 289,043.33
Step by Step Solution
- Step 1: Write the proportion equation
352,639.27 : 486,766.36 = 209,398.26 : x - Step 2: Convert to fraction form
352,639.27/486,766.36 = 209,398.26/x - Step 3: Cross multiply
352,639.27x = 486,766.36 × 209,398.26 - Step 4: Simplify right side
352,639.27x = 101,928,030,897.66 - Step 5: Solve for x
x = 101,928,030,897.66/352,639.27 - Step 6: Final answer
x = 289,043.33
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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.