Finding the Fourth Proportional to 228,716.61, 343,107.99 and 86,523.32
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Solution
The fourth proportional to 228,716.61, 343,107.99 and 86,523.32 is: 129,797.48
Step by Step Solution
- Step 1: Write the proportion equation
228,716.61 : 343,107.99 = 86,523.32 : x - Step 2: Convert to fraction form
228,716.61/343,107.99 = 86,523.32/x - Step 3: Cross multiply
228,716.61x = 343,107.99 × 86,523.32 - Step 4: Simplify right side
228,716.61x = 29,686,840,697.79 - Step 5: Solve for x
x = 29,686,840,697.79/228,716.61 - Step 6: Final answer
x = 129,797.48
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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.