Finding the Fourth Proportional to 314,879.20, 472,318.80 and 128,024.80
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Solution
The fourth proportional to 314,879.20, 472,318.80 and 128,024.80 is: 192,037.20
Step by Step Solution
- Step 1: Write the proportion equation
314,879.20 : 472,318.80 = 128,024.80 : x - Step 2: Convert to fraction form
314,879.20/472,318.80 = 128,024.80/x - Step 3: Cross multiply
314,879.20x = 472,318.80 × 128,024.80 - Step 4: Simplify right side
314,879.20x = 60,468,519,906.24 - Step 5: Solve for x
x = 60,468,519,906.24/314,879.20 - Step 6: Final answer
x = 192,037.20
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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.