Finding the Fourth Proportional to 282,690.72, 389,983.14 and 173,696.13
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Solution
The fourth proportional to 282,690.72, 389,983.14 and 173,696.13 is: 239,620.75
Step by Step Solution
- Step 1: Write the proportion equation
282,690.72 : 389,983.14 = 173,696.13 : x - Step 2: Convert to fraction form
282,690.72/389,983.14 = 173,696.13/x - Step 3: Cross multiply
282,690.72x = 389,983.14 × 173,696.13 - Step 4: Simplify right side
282,690.72x = 67,738,562,183.25 - Step 5: Solve for x
x = 67,738,562,183.25/282,690.72 - Step 6: Final answer
x = 239,620.75
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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.