Finding the Fourth Proportional to 215,847.09, 323,864.10 and 115,890.66
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Solution
The fourth proportional to 215,847.09, 323,864.10 and 115,890.66 is: 173,886.17
Step by Step Solution
- Step 1: Write the proportion equation
215,847.09 : 323,864.10 = 115,890.66 : x - Step 2: Convert to fraction form
215,847.09/323,864.10 = 115,890.66/x - Step 3: Cross multiply
215,847.09x = 323,864.10 × 115,890.66 - Step 4: Simplify right side
215,847.09x = 37,532,824,299.31 - Step 5: Solve for x
x = 37,532,824,299.31/215,847.09 - Step 6: Final answer
x = 173,886.17
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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.