Finding the Fourth Proportional to 285,207.73, 393,586.79 and 156,154.57
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Solution
The fourth proportional to 285,207.73, 393,586.79 and 156,154.57 is: 215,493.37
Step by Step Solution
- Step 1: Write the proportion equation
285,207.73 : 393,586.79 = 156,154.57 : x - Step 2: Convert to fraction form
285,207.73/393,586.79 = 156,154.57/x - Step 3: Cross multiply
285,207.73x = 393,586.79 × 156,154.57 - Step 4: Simplify right side
285,207.73x = 61,460,375,950.13 - Step 5: Solve for x
x = 61,460,375,950.13/285,207.73 - Step 6: Final answer
x = 215,493.37
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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.