Finding the Fourth Proportional to 289,226.64, 399,030.12 and 188,449.68
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Solution
The fourth proportional to 289,226.64, 399,030.12 and 188,449.68 is: 259,993.68
Step by Step Solution
- Step 1: Write the proportion equation
289,226.64 : 399,030.12 = 188,449.68 : x - Step 2: Convert to fraction form
289,226.64/399,030.12 = 188,449.68/x - Step 3: Cross multiply
289,226.64x = 399,030.12 × 188,449.68 - Step 4: Simplify right side
289,226.64x = 75,197,098,424.36 - Step 5: Solve for x
x = 75,197,098,424.36/289,226.64 - Step 6: Final answer
x = 259,993.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.