Finding the Fourth Proportional to 257,863.74, 386,814.24 and 107,953.26
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Solution
The fourth proportional to 257,863.74, 386,814.24 and 107,953.26 is: 161,937.69
Step by Step Solution
- Step 1: Write the proportion equation
257,863.74 : 386,814.24 = 107,953.26 : x - Step 2: Convert to fraction form
257,863.74/386,814.24 = 107,953.26/x - Step 3: Cross multiply
257,863.74x = 386,814.24 × 107,953.26 - Step 4: Simplify right side
257,863.74x = 41,757,858,222.42 - Step 5: Solve for x
x = 41,757,858,222.42/257,863.74 - Step 6: Final answer
x = 161,937.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.