Finding the Fourth Proportional to 312,317.91, 430,998.84 and 169,077.96
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Solution
The fourth proportional to 312,317.91, 430,998.84 and 169,077.96 is: 233,327.65
Step by Step Solution
- Step 1: Write the proportion equation
312,317.91 : 430,998.84 = 169,077.96 : x - Step 2: Convert to fraction form
312,317.91/430,998.84 = 169,077.96/x - Step 3: Cross multiply
312,317.91x = 430,998.84 × 169,077.96 - Step 4: Simplify right side
312,317.91x = 72,872,404,629.57 - Step 5: Solve for x
x = 72,872,404,629.57/312,317.91 - Step 6: Final answer
x = 233,327.65
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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.