Finding the Fourth Proportional to 276,685.40, 415,028.10 and 274,935.80
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Solution
The fourth proportional to 276,685.40, 415,028.10 and 274,935.80 is: 412,403.70
Step by Step Solution
- Step 1: Write the proportion equation
276,685.40 : 415,028.10 = 274,935.80 : x - Step 2: Convert to fraction form
276,685.40/415,028.10 = 274,935.80/x - Step 3: Cross multiply
276,685.40x = 415,028.10 × 274,935.80 - Step 4: Simplify right side
276,685.40x = 114,106,082,695.98 - Step 5: Solve for x
x = 114,106,082,695.98/276,685.40 - Step 6: Final answer
x = 412,403.70
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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.