Finding the Fourth Proportional to 312,646.44, 431,452.46 and 169,406.37
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Solution
The fourth proportional to 312,646.44, 431,452.46 and 169,406.37 is: 233,780.99
Step by Step Solution
- Step 1: Write the proportion equation
312,646.44 : 431,452.46 = 169,406.37 : x - Step 2: Convert to fraction form
312,646.44/431,452.46 = 169,406.37/x - Step 3: Cross multiply
312,646.44x = 431,452.46 × 169,406.37 - Step 4: Simplify right side
312,646.44x = 73,090,795,076.17 - Step 5: Solve for x
x = 73,090,795,076.17/312,646.44 - Step 6: Final answer
x = 233,780.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.