Finding the Fourth Proportional to 289,029.12, 398,875.68 and 161,697.12
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Solution
The fourth proportional to 289,029.12, 398,875.68 and 161,697.12 is: 223,150.69
Step by Step Solution
- Step 1: Write the proportion equation
289,029.12 : 398,875.68 = 161,697.12 : x - Step 2: Convert to fraction form
289,029.12/398,875.68 = 161,697.12/x - Step 3: Cross multiply
289,029.12x = 398,875.68 × 161,697.12 - Step 4: Simplify right side
289,029.12x = 64,497,048,694.04 - Step 5: Solve for x
x = 64,497,048,694.04/289,029.12 - Step 6: Final answer
x = 223,150.69
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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.