Finding the Fourth Proportional to 228,936.87, 342,993.42 and 215,431.74
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Solution
The fourth proportional to 228,936.87, 342,993.42 and 215,431.74 is: 322,760.02
Step by Step Solution
- Step 1: Write the proportion equation
228,936.87 : 342,993.42 = 215,431.74 : x - Step 2: Convert to fraction form
228,936.87/342,993.42 = 215,431.74/x - Step 3: Cross multiply
228,936.87x = 342,993.42 × 215,431.74 - Step 4: Simplify right side
228,936.87x = 73,891,669,279.15 - Step 5: Solve for x
x = 73,891,669,279.15/228,936.87 - Step 6: Final answer
x = 322,760.02
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1.5x scale
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.