Finding the Fourth Proportional to 276,775.80, 415,163.70 and 136,807.80
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Solution
The fourth proportional to 276,775.80, 415,163.70 and 136,807.80 is: 205,211.70
Step by Step Solution
- Step 1: Write the proportion equation
276,775.80 : 415,163.70 = 136,807.80 : x - Step 2: Convert to fraction form
276,775.80/415,163.70 = 136,807.80/x - Step 3: Cross multiply
276,775.80x = 415,163.70 × 136,807.80 - Step 4: Simplify right side
276,775.80x = 56,797,632,436.86 - Step 5: Solve for x
x = 56,797,632,436.86/276,775.80 - Step 6: Final answer
x = 205,211.70
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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.