Finding the Fourth Proportional to 307,690.68, 461,536.02 and 86,074.68
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Solution
The fourth proportional to 307,690.68, 461,536.02 and 86,074.68 is: 129,112.02
Step by Step Solution
- Step 1: Write the proportion equation
307,690.68 : 461,536.02 = 86,074.68 : x - Step 2: Convert to fraction form
307,690.68/461,536.02 = 86,074.68/x - Step 3: Cross multiply
307,690.68x = 461,536.02 × 86,074.68 - Step 4: Simplify right side
307,690.68x = 39,726,565,229.97 - Step 5: Solve for x
x = 39,726,565,229.97/307,690.68 - Step 6: Final answer
x = 129,112.02
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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.