Finding the Fourth Proportional to 282,101.97, 389,301.09 and 154,778.07
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Solution
The fourth proportional to 282,101.97, 389,301.09 and 154,778.07 is: 213,593.94
Step by Step Solution
- Step 1: Write the proportion equation
282,101.97 : 389,301.09 = 154,778.07 : x - Step 2: Convert to fraction form
282,101.97/389,301.09 = 154,778.07/x - Step 3: Cross multiply
282,101.97x = 389,301.09 × 154,778.07 - Step 4: Simplify right side
282,101.97x = 60,255,271,359.10 - Step 5: Solve for x
x = 60,255,271,359.10/282,101.97 - Step 6: Final answer
x = 213,593.94
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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.