Finding the Fourth Proportional to 276,442.87, 414,664.00 and 86,919.81
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Solution
The fourth proportional to 276,442.87, 414,664.00 and 86,919.81 is: 130,379.62
Step by Step Solution
- Step 1: Write the proportion equation
276,442.87 : 414,664.00 = 86,919.81 : x - Step 2: Convert to fraction form
276,442.87/414,664.00 = 86,919.81/x - Step 3: Cross multiply
276,442.87x = 414,664.00 × 86,919.81 - Step 4: Simplify right side
276,442.87x = 36,042,516,202.49 - Step 5: Solve for x
x = 36,042,516,202.49/276,442.87 - Step 6: Final answer
x = 130,379.62
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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.