Finding the Fourth Proportional to 276,821.10, 414,903.60 and 143,632.80
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Solution
The fourth proportional to 276,821.10, 414,903.60 and 143,632.80 is: 215,278.99
Step by Step Solution
- Step 1: Write the proportion equation
276,821.10 : 414,903.60 = 143,632.80 : x - Step 2: Convert to fraction form
276,821.10/414,903.60 = 143,632.80/x - Step 3: Cross multiply
276,821.10x = 414,903.60 × 143,632.80 - Step 4: Simplify right side
276,821.10x = 59,593,765,798.08 - Step 5: Solve for x
x = 59,593,765,798.08/276,821.10 - Step 6: Final answer
x = 215,278.99
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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.