Finding the Fourth Proportional to 215,378.96, 323,090.53 and 82,371.09
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Solution
The fourth proportional to 215,378.96, 323,090.53 and 82,371.09 is: 123,565.08
Step by Step Solution
- Step 1: Write the proportion equation
215,378.96 : 323,090.53 = 82,371.09 : x - Step 2: Convert to fraction form
215,378.96/323,090.53 = 82,371.09/x - Step 3: Cross multiply
215,378.96x = 323,090.53 × 82,371.09 - Step 4: Simplify right side
215,378.96x = 26,613,319,124.78 - Step 5: Solve for x
x = 26,613,319,124.78/215,378.96 - Step 6: Final answer
x = 123,565.08
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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.