Finding the Fourth Proportional to 211,992.05, 317,790.43 and 71,652.53
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Solution
The fourth proportional to 211,992.05, 317,790.43 and 71,652.53 is: 107,411.99
Step by Step Solution
- Step 1: Write the proportion equation
211,992.05 : 317,790.43 = 71,652.53 : x - Step 2: Convert to fraction form
211,992.05/317,790.43 = 71,652.53/x - Step 3: Cross multiply
211,992.05x = 317,790.43 × 71,652.53 - Step 4: Simplify right side
211,992.05x = 22,770,488,319.29 - Step 5: Solve for x
x = 22,770,488,319.29/211,992.05 - Step 6: Final answer
x = 107,411.99
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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.