Finding the Fourth Proportional to 312,757.74, 431,607.24 and 169,516.53
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Solution
The fourth proportional to 312,757.74, 431,607.24 and 169,516.53 is: 233,933.66
Step by Step Solution
- Step 1: Write the proportion equation
312,757.74 : 431,607.24 = 169,516.53 : x - Step 2: Convert to fraction form
312,757.74/431,607.24 = 169,516.53/x - Step 3: Cross multiply
312,757.74x = 431,607.24 × 169,516.53 - Step 4: Simplify right side
312,757.74x = 73,164,561,647.68 - Step 5: Solve for x
x = 73,164,561,647.68/312,757.74 - Step 6: Final answer
x = 233,933.66
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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.