Finding the Fourth Proportional to 312,074.44, 430,665.84 and 168,837.56
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Solution
The fourth proportional to 312,074.44, 430,665.84 and 168,837.56 is: 232,997.52
Step by Step Solution
- Step 1: Write the proportion equation
312,074.44 : 430,665.84 = 168,837.56 : x - Step 2: Convert to fraction form
312,074.44/430,665.84 = 168,837.56/x - Step 3: Cross multiply
312,074.44x = 430,665.84 × 168,837.56 - Step 4: Simplify right side
312,074.44x = 72,712,569,062.62 - Step 5: Solve for x
x = 72,712,569,062.62/312,074.44 - Step 6: Final answer
x = 232,997.52
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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.