Finding the Fourth Proportional to 331,371.09, 497,019.41 and 91,519.09
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Solution
The fourth proportional to 331,371.09, 497,019.41 and 91,519.09 is: 137,268.35
Step by Step Solution
- Step 1: Write the proportion equation
331,371.09 : 497,019.41 = 91,519.09 : x - Step 2: Convert to fraction form
331,371.09/497,019.41 = 91,519.09/x - Step 3: Cross multiply
331,371.09x = 497,019.41 × 91,519.09 - Step 4: Simplify right side
331,371.09x = 45,486,762,586.99 - Step 5: Solve for x
x = 45,486,762,586.99/331,371.09 - Step 6: Final answer
x = 137,268.35
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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.