Finding the Fourth Proportional to 277,930.80, 416,900.76 and 78,255.99
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Solution
The fourth proportional to 277,930.80, 416,900.76 and 78,255.99 is: 117,385.27
Step by Step Solution
- Step 1: Write the proportion equation
277,930.80 : 416,900.76 = 78,255.99 : x - Step 2: Convert to fraction form
277,930.80/416,900.76 = 78,255.99/x - Step 3: Cross multiply
277,930.80x = 416,900.76 × 78,255.99 - Step 4: Simplify right side
277,930.80x = 32,624,981,705.55 - Step 5: Solve for x
x = 32,624,981,705.55/277,930.80 - Step 6: Final answer
x = 117,385.27
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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.