Finding the Fourth Proportional to 289,495.44, 399,388.74 and 180,535.68
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Solution
The fourth proportional to 289,495.44, 399,388.74 and 180,535.68 is: 249,067.54
Step by Step Solution
- Step 1: Write the proportion equation
289,495.44 : 399,388.74 = 180,535.68 : x - Step 2: Convert to fraction form
289,495.44/399,388.74 = 180,535.68/x - Step 3: Cross multiply
289,495.44x = 399,388.74 × 180,535.68 - Step 4: Simplify right side
289,495.44x = 72,103,917,760.24 - Step 5: Solve for x
x = 72,103,917,760.24/289,495.44 - Step 6: Final answer
x = 249,067.54
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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.