Finding the Fourth Proportional to 276,744.60, 381,879.36 and 155,866.68
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Solution
The fourth proportional to 276,744.60, 381,879.36 and 155,866.68 is: 215,080.14
Step by Step Solution
- Step 1: Write the proportion equation
276,744.60 : 381,879.36 = 155,866.68 : x - Step 2: Convert to fraction form
276,744.60/381,879.36 = 155,866.68/x - Step 3: Cross multiply
276,744.60x = 381,879.36 × 155,866.68 - Step 4: Simplify right side
276,744.60x = 59,522,268,003.72 - Step 5: Solve for x
x = 59,522,268,003.72/276,744.60 - Step 6: Final answer
x = 215,080.14
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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.