Finding the Fourth Proportional to 276,319.58, 414,479.34 and 76,639.97
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Solution
The fourth proportional to 276,319.58, 414,479.34 and 76,639.97 is: 114,959.95
Step by Step Solution
- Step 1: Write the proportion equation
276,319.58 : 414,479.34 = 76,639.97 : x - Step 2: Convert to fraction form
276,319.58/414,479.34 = 76,639.97/x - Step 3: Cross multiply
276,319.58x = 414,479.34 × 76,639.97 - Step 4: Simplify right side
276,319.58x = 31,765,684,183.22 - Step 5: Solve for x
x = 31,765,684,183.22/276,319.58 - Step 6: Final answer
x = 114,959.95
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1.5x scale
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.