Finding the Fourth Proportional to 249,949.11, 374,736.24 and 81,368.67
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Solution
The fourth proportional to 249,949.11, 374,736.24 and 81,368.67 is: 121,991.99
Step by Step Solution
- Step 1: Write the proportion equation
249,949.11 : 374,736.24 = 81,368.67 : x - Step 2: Convert to fraction form
249,949.11/374,736.24 = 81,368.67/x - Step 3: Cross multiply
249,949.11x = 374,736.24 × 81,368.67 - Step 4: Simplify right side
249,949.11x = 30,491,789,449.60 - Step 5: Solve for x
x = 30,491,789,449.60/249,949.11 - Step 6: Final answer
x = 121,991.99
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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.