Finding the Fourth Proportional to 276,074.99, 414,121.68 and 76,378.65
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Solution
The fourth proportional to 276,074.99, 414,121.68 and 76,378.65 is: 114,570.52
Step by Step Solution
- Step 1: Write the proportion equation
276,074.99 : 414,121.68 = 76,378.65 : x - Step 2: Convert to fraction form
276,074.99/414,121.68 = 76,378.65/x - Step 3: Cross multiply
276,074.99x = 414,121.68 × 76,378.65 - Step 4: Simplify right side
276,074.99x = 31,630,054,854.13 - Step 5: Solve for x
x = 31,630,054,854.13/276,074.99 - Step 6: Final answer
x = 114,570.52
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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.