Finding the Fourth Proportional to 312,173.91, 430,799.99 and 168,933.96
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Solution
The fourth proportional to 312,173.91, 430,799.99 and 168,933.96 is: 233,128.86
Step by Step Solution
- Step 1: Write the proportion equation
312,173.91 : 430,799.99 = 168,933.96 : x - Step 2: Convert to fraction form
312,173.91/430,799.99 = 168,933.96/x - Step 3: Cross multiply
312,173.91x = 430,799.99 × 168,933.96 - Step 4: Simplify right side
312,173.91x = 72,776,748,183.66 - Step 5: Solve for x
x = 72,776,748,183.66/312,173.91 - Step 6: Final answer
x = 233,128.86
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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.