Finding the Fourth Proportional to 211,991.05, 317,788.93 and 71,651.53
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Solution
The fourth proportional to 211,991.05, 317,788.93 and 71,651.53 is: 107,410.49
Step by Step Solution
- Step 1: Write the proportion equation
211,991.05 : 317,788.93 = 71,651.53 : x - Step 2: Convert to fraction form
211,991.05/317,788.93 = 71,651.53/x - Step 3: Cross multiply
211,991.05x = 317,788.93 × 71,651.53 - Step 4: Simplify right side
211,991.05x = 22,770,063,051.56 - Step 5: Solve for x
x = 22,770,063,051.56/211,991.05 - Step 6: Final answer
x = 107,410.49
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1.5x scale
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.