Finding the Fourth Proportional to 226,591.60, 339,919.80 and 76,838.80
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Solution
The fourth proportional to 226,591.60, 339,919.80 and 76,838.80 is: 115,269.19
Step by Step Solution
- Step 1: Write the proportion equation
226,591.60 : 339,919.80 = 76,838.80 : x - Step 2: Convert to fraction form
226,591.60/339,919.80 = 76,838.80/x - Step 3: Cross multiply
226,591.60x = 339,919.80 × 76,838.80 - Step 4: Simplify right side
226,591.60x = 26,119,029,528.24 - Step 5: Solve for x
x = 26,119,029,528.24/226,591.60 - Step 6: Final answer
x = 115,269.19
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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.