Finding the Fourth Proportional to 312,896.44, 431,797.10 and 169,656.44
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Solution
The fourth proportional to 312,896.44, 431,797.10 and 169,656.44 is: 234,125.89
Step by Step Solution
- Step 1: Write the proportion equation
312,896.44 : 431,797.10 = 169,656.44 : x - Step 2: Convert to fraction form
312,896.44/431,797.10 = 169,656.44/x - Step 3: Cross multiply
312,896.44x = 431,797.10 × 169,656.44 - Step 4: Simplify right side
312,896.44x = 73,257,158,788.32 - Step 5: Solve for x
x = 73,257,158,788.32/312,896.44 - Step 6: Final answer
x = 234,125.89
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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.