Finding the Fourth Proportional to 437,509.20, 656,278.44 and 121,939.68
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Solution
The fourth proportional to 437,509.20, 656,278.44 and 121,939.68 is: 182,913.60
Step by Step Solution
- Step 1: Write the proportion equation
437,509.20 : 656,278.44 = 121,939.68 : x - Step 2: Convert to fraction form
437,509.20/656,278.44 = 121,939.68/x - Step 3: Cross multiply
437,509.20x = 656,278.44 × 121,939.68 - Step 4: Simplify right side
437,509.20x = 80,026,382,964.50 - Step 5: Solve for x
x = 80,026,382,964.50/437,509.20 - Step 6: Final answer
x = 182,913.60
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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.