Finding the Fourth Proportional to 276,074.36, 414,120.74 and 76,378.02
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Solution
The fourth proportional to 276,074.36, 414,120.74 and 76,378.02 is: 114,569.58
Step by Step Solution
- Step 1: Write the proportion equation
276,074.36 : 414,120.74 = 76,378.02 : x - Step 2: Convert to fraction form
276,074.36/414,120.74 = 76,378.02/x - Step 3: Cross multiply
276,074.36x = 414,120.74 × 76,378.02 - Step 4: Simplify right side
276,074.36x = 31,629,721,780.24 - Step 5: Solve for x
x = 31,629,721,780.24/276,074.36 - Step 6: Final answer
x = 114,569.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.