Finding the Fourth Proportional to 211,991.67, 317,986.75 and 201,348.90
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Solution
The fourth proportional to 211,991.67, 317,986.75 and 201,348.90 is: 302,022.63
Step by Step Solution
- Step 1: Write the proportion equation
211,991.67 : 317,986.75 = 201,348.90 : x - Step 2: Convert to fraction form
211,991.67/317,986.75 = 201,348.90/x - Step 3: Cross multiply
211,991.67x = 317,986.75 × 201,348.90 - Step 4: Simplify right side
211,991.67x = 64,026,282,327.08 - Step 5: Solve for x
x = 64,026,282,327.08/211,991.67 - Step 6: Final answer
x = 302,022.63
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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.