Finding the Fourth Proportional to 354,716.36, 489,519.40 and 201,776.72
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Solution
The fourth proportional to 354,716.36, 489,519.40 and 201,776.72 is: 278,458.03
Step by Step Solution
- Step 1: Write the proportion equation
354,716.36 : 489,519.40 = 201,776.72 : x - Step 2: Convert to fraction form
354,716.36/489,519.40 = 201,776.72/x - Step 3: Cross multiply
354,716.36x = 489,519.40 × 201,776.72 - Step 4: Simplify right side
354,716.36x = 98,773,619,088.21 - Step 5: Solve for x
x = 98,773,619,088.21/354,716.36 - Step 6: Final answer
x = 278,458.03
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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.